Email Notification

v2

Class: EmailNotificationBlockV2 (there are multiple versions of this block)

Source: inference.core.workflows.core_steps.sinks.email_notification.v2.EmailNotificationBlockV2

Warning: This block has multiple versions. Please refer to the specific version for details. You can learn more about how versions work here: Versioning

The Email Notification block allows users to send email notifications as part of a workflow.

Email Provider Options

This block supports two email delivery methods via a dropdown selector:

1. Roboflow Managed API Key (Default) - No SMTP configuration needed. Emails are sent through Roboflow's proxy service:
2. Simplified setup - just provide subject, message, and recipient
3. Secure - your workflow API key is used for authentication

4. No SMTP server required

5. Custom SMTP - Use your own SMTP server:

6. Full control over email delivery
7. Requires SMTP server configuration (host, port, credentials)
8. Supports CC and BCC recipients

Customizable Email Content

• Subject: Set the subject field to define the subject line of the email.

• Message: Use the message field to write the body content of the email. Message can be parametrised with data generated during workflow run. See Dynamic Parameters section.

• Recipients (To, CC, BCC): Define who will receive the email using receiver_email, cc_receiver_email, and bcc_receiver_email properties. You can input a single email or a list.

Dynamic Parameters

Content of the message can be parametrised with Workflow execution outcomes. Take a look at the example message using dynamic parameters:

message = "This is example notification. Predicted classes: {{ $parameters.predicted_classes }}"

Message parameters are delivered by Workflows Execution Engine by setting proper data selectors in message_parameters field, for example:

message_parameters = {
    "predicted_classes": "$steps.model.predictions"
}

Selecting data is not the only option - data may be processed in the block. In the example below we wish to extract names of predicted classes. We can apply transformation for each parameter by setting message_parameters_operations:

message_parameters_operations = {
    "predictions": [
        {"type": "DetectionsPropertyExtract", "property_name": "class_name"}
    ]
}

As a result, in the e-mail that will be sent, you can expect:

This is example notification. Predicted classes: ["class_a", "class_b"].

Using Custom SMTP Server

To use your own SMTP server, select "Custom SMTP" from the email_provider dropdown and configure the following parameters:

• smtp_server - hostname of the SMTP server to use

• sender_email - e-mail account to be used as sender

• sender_email_password - password for sender e-mail account

• smtp_port - port of SMTP service - defaults to 465

Block enforces SSL over SMTP.

Typical scenario for using custom SMTP server involves sending e-mail through Google SMTP server. Take a look at Google tutorial to configure the block properly.

GMAIL password will not work if 2-step verification is turned on

GMAIL users choosing custom SMTP server as e-mail service provider must configure application password to avoid problems with 2-step verification protected account. Beware that application password must be kept protected - we recommend sending the password in Workflow input and providing it each time by the caller, avoiding storing it in Workflow definition.

Cooldown

The block accepts cooldown_seconds (which defaults to 5 seconds) to prevent unintended bursts of notifications. Please adjust it according to your needs, setting 0 indicate no cooldown.

During cooldown period, consecutive runs of the step will cause throttling_status output to be set True and no notification will be sent.

Cooldown limitations

Current implementation of cooldown is limited to video processing - using this block in context of a Workflow that is run behind HTTP service (Roboflow Hosted API, Dedicated Deployment or self-hosted inference server) will have no effect for processing HTTP requests.

Attachments

You may specify attachment files to be sent with your e-mail. Attachments can be generated in runtime by dedicated blocks or from image outputs.

Supported attachment types: - CSV/Text files: From blocks like CSV Formatter - Images: Any image output from visualization blocks (automatically converted to JPEG) - Binary data: Any bytes output from compatible blocks

To include attachments, provide the attachment filename as the key and reference the block output:

attachments = {
    "report.csv": "$steps.csv_formatter.csv_content",
    "detection.jpg": "$steps.bounding_box_visualization.image"
}

Note: Image attachments are automatically converted to JPEG format. If the filename doesn't include a .jpg or .jpeg extension, it will be added automatically.

Async execution

Configure the fire_and_forget property. Set it to True if you want the email to be sent in the background, allowing the Workflow to proceed without waiting on e-mail to be sent. In this case you will not be able to rely on error_status output which will always be set to False, so we recommend setting the fire_and_forget=False for debugging purposes.

Disabling notifications based on runtime parameter

Sometimes it would be convenient to manually disable the e-mail notifier block. This is possible setting disable_sink flag to hold reference to Workflow input. with such setup, caller would be able to disable the sink when needed sending agreed input parameter.

Type identifier

Use the following identifier in step "type" field: roboflow_core/email_notification@v2to add the block as as step in your workflow.

Properties

Name	Type	Description	Refs
name	str	Enter a unique identifier for this step..	❌
email_provider	str	Choose email delivery method: use Roboflow's managed service or configure your own SMTP server..	❌
subject	str	Subject of the message..	❌
receiver_email	Union[List[str], str]	Destination e-mail address..	✅
message	str	Content of the message to be send..	❌
message_parameters	Dict[str, Union[bool, float, int, str]]	Data to be used inside the message..	✅
message_parameters_operations	Dict[str, List[Union[ClassificationPropertyExtract, ConvertDictionaryToJSON, ConvertImageToBase64, ConvertImageToJPEG, DetectionsFilter, DetectionsOffset, DetectionsPropertyExtract, DetectionsRename, DetectionsSelection, DetectionsShift, DetectionsToDictionary, Divide, ExtractDetectionProperty, ExtractFrameMetadata, ExtractImageProperty, LookupTable, Multiply, NumberRound, NumericSequenceAggregate, PickDetectionsByParentClass, RandomNumber, SequenceAggregate, SequenceApply, SequenceElementsCount, SequenceLength, SequenceMap, SortDetections, StringMatches, StringSubSequence, StringToLowerCase, StringToUpperCase, TimestampToISOFormat, ToBoolean, ToNumber, ToString]]]	Preprocessing operations to be performed on message parameters..	❌
sender_email	str	E-mail to be used to send the message..	✅
smtp_server	str	Custom SMTP server to be used..	✅
sender_email_password	str	Sender e-mail password be used when authenticating to SMTP server..	✅
cc_receiver_email	Optional[List[str], str]	CC e-mail address..	✅
bcc_receiver_email	Optional[List[str], str]	BCC e-mail address..	✅
smtp_port	int	SMTP server port..	❌
fire_and_forget	bool	Boolean flag to run the block asynchronously (True) for faster workflows or synchronously (False) for debugging and error handling..	✅
disable_sink	bool	Boolean flag to disable block execution..	✅
cooldown_seconds	int	Number of seconds until a follow-up notification can be sent. .	✅

The Refs column marks possibility to parametrise the property with dynamic values available in workflow runtime. See Bindings for more info.

Available Connections

Compatible Blocks

Check what blocks you can connect to Email Notification in version v2.

• inputs: Llama 3.2 Vision, SAM 3, Polygon Zone Visualization, Distance Measurement, Pixelate Visualization, Roboflow Custom Metadata, Trace Visualization, QR Code Detection, Detections Transformation, Image Threshold, Rate Limiter, Image Slicer, Icon Visualization, Stability AI Outpainting, Dynamic Zone, Clip Comparison, Model Comparison Visualization, Single-Label Classification Model, Cache Get, Stitch Images, Florence-2 Model, Size Measurement, Single-Label Classification Model, Environment Secrets Store, Relative Static Crop, Absolute Static Crop, SIFT Comparison, SAM 3, Moondream2, Florence-2 Model, LMM For Classification, Anthropic Claude, Image Blur, Stability AI Image Generation, Local File Sink, Camera Calibration, Keypoint Detection Model, VLM as Detector, First Non Empty Or Default, Detections Filter, Gaze Detection, Background Color Visualization, Keypoint Detection Model, Delta Filter, Multi-Label Classification Model, Google Gemini, Model Monitoring Inference Aggregator, Roboflow Dataset Upload, Byte Tracker, Instance Segmentation Model, VLM as Classifier, CSV Formatter, Motion Detection, Morphological Transformation, Data Aggregator, OpenAI, Barcode Detection, YOLO-World Model, JSON Parser, CogVLM, Clip Comparison, Expression, Identify Changes, CLIP Embedding Model, Path Deviation, Crop Visualization, Grid Visualization, Buffer, Bounding Rectangle, SIFT, SAM 3, Anthropic Claude, Time in Zone, Detection Offset, Qwen2.5-VL, SIFT Comparison, OpenAI, Line Counter, Detections Consensus, Cosine Similarity, Path Deviation, Blur Visualization, Perception Encoder Embedding Model, Dimension Collapse, Perspective Correction, Bounding Box Visualization, QR Code Generator, Velocity, Segment Anything 2 Model, Polygon Visualization, Dynamic Crop, Identify Outliers, LMM, OpenAI, Classification Label Visualization, Mask Visualization, Time in Zone, Google Gemini, Circle Visualization, Ellipse Visualization, Image Convert Grayscale, Time in Zone, Object Detection Model, OCR Model, SmolVLM2, Image Preprocessing, Google Vision OCR, Color Visualization, Keypoint Visualization, EasyOCR, Email Notification, VLM as Detector, Image Slicer, Property Definition, Line Counter, Detections Combine, Byte Tracker, Roboflow Dataset Upload, Overlap Filter, Triangle Visualization, Slack Notification, Halo Visualization, Detections Stabilizer, Corner Visualization, Object Detection Model, Dot Visualization, Multi-Label Classification Model, Twilio SMS Notification, Image Contours, Detections Merge, Seg Preview, Reference Path Visualization, Byte Tracker, Webhook Sink, PTZ Tracking (ONVIF).md), Detections Classes Replacement, Instance Segmentation Model, Detections Stitch, Contrast Equalization, Camera Focus, Stitch OCR Detections, Stability AI Inpainting, Line Counter Visualization, Cache Set, Template Matching, Email Notification, VLM as Classifier, OpenAI, Depth Estimation, Continue If, Background Subtraction, Label Visualization, Pixel Color Count, Dominant Color
• outputs: Line Counter, Detections Consensus, Path Deviation, Llama 3.2 Vision, Blur Visualization, Perception Encoder Embedding Model, SAM 3, Perspective Correction, Polygon Zone Visualization, Bounding Box Visualization, QR Code Generator, Pixelate Visualization, Distance Measurement, Trace Visualization, Roboflow Custom Metadata, Segment Anything 2 Model, Image Threshold, Polygon Visualization, Icon Visualization, Dynamic Crop, Stability AI Outpainting, Dynamic Zone, Model Comparison Visualization, Single-Label Classification Model, LMM, OpenAI, Classification Label Visualization, Cache Get, Size Measurement, Mask Visualization, Single-Label Classification Model, Florence-2 Model, SAM 3, Time in Zone, SIFT Comparison, Moondream2, Google Gemini, Circle Visualization, Florence-2 Model, LMM For Classification, Time in Zone, Ellipse Visualization, Object Detection Model, Anthropic Claude, Color Visualization, Image Preprocessing, Image Blur, Stability AI Image Generation, Google Vision OCR, Keypoint Visualization, Local File Sink, Keypoint Detection Model, Email Notification, Line Counter, Roboflow Dataset Upload, Gaze Detection, Triangle Visualization, Slack Notification, Keypoint Detection Model, Background Color Visualization, Multi-Label Classification Model, Object Detection Model, Halo Visualization, Corner Visualization, Google Gemini, Model Monitoring Inference Aggregator, Roboflow Dataset Upload, Dot Visualization, Multi-Label Classification Model, Twilio SMS Notification, Instance Segmentation Model, Seg Preview, Reference Path Visualization, Motion Detection, Morphological Transformation, OpenAI, Webhook Sink, PTZ Tracking (ONVIF).md), Detections Classes Replacement, Instance Segmentation Model, Detections Stitch, Contrast Equalization, YOLO-World Model, Stitch OCR Detections, Stability AI Inpainting, Clip Comparison, CogVLM, Line Counter Visualization, Cache Set, Template Matching, Path Deviation, CLIP Embedding Model, Email Notification, Crop Visualization, OpenAI, SAM 3, Label Visualization, Anthropic Claude, Pixel Color Count, Time in Zone, OpenAI

Input and Output Bindings

The available connections depend on its binding kinds. Check what binding kinds Email Notification in version v2 has.

Bindings

• input

  • receiver_email (Union[list_of_values, string]): Destination e-mail address..
  • message_parameters (*): Data to be used inside the message..
  • sender_email (string): E-mail to be used to send the message..
  • smtp_server (string): Custom SMTP server to be used..
  • sender_email_password (Union[secret, string]): Sender e-mail password be used when authenticating to SMTP server..
  • cc_receiver_email (Union[list_of_values, string]): CC e-mail address..
  • bcc_receiver_email (Union[list_of_values, string]): BCC e-mail address..
  • attachments (Union[image, bytes, string]): Attachments.
  • fire_and_forget (boolean): Boolean flag to run the block asynchronously (True) for faster workflows or synchronously (False) for debugging and error handling..
  • disable_sink (boolean): Boolean flag to disable block execution..
  • cooldown_seconds (integer): Number of seconds until a follow-up notification can be sent. .

• output

  • error_status (boolean): Boolean flag.
  • throttling_status (boolean): Boolean flag.
  • message (string): String value.

Example JSON definition of step Email Notification in version v2

{
    "name": "<your_step_name_here>",
    "type": "roboflow_core/email_notification@v2",
    "email_provider": "Roboflow Managed API Key",
    "subject": "Workflow alert",
    "receiver_email": "receiver@gmail.com",
    "message": "During last 5 minutes detected {{ $parameters.num_instances }} instances",
    "message_parameters": {
        "predictions": "$steps.model.predictions",
        "reference": "$inputs.reference_class_names"
    },
    "message_parameters_operations": {
        "predictions": [
            {
                "property_name": "class_name",
                "type": "DetectionsPropertyExtract"
            }
        ]
    },
    "sender_email": "sender@gmail.com",
    "smtp_server": "$inputs.smtp_server",
    "sender_email_password": "$inputs.email_password",
    "cc_receiver_email": "cc-receiver@gmail.com",
    "bcc_receiver_email": "bcc-receiver@gmail.com",
    "smtp_port": 465,
    "attachments": {
        "report.cvs": "$steps.csv_formatter.csv_content"
    },
    "fire_and_forget": "$inputs.fire_and_forget",
    "disable_sink": false,
    "cooldown_seconds": "$inputs.cooldown_seconds"
}

v1

Class: EmailNotificationBlockV1 (there are multiple versions of this block)

Source: inference.core.workflows.core_steps.sinks.email_notification.v1.EmailNotificationBlockV1

Warning: This block has multiple versions. Please refer to the specific version for details. You can learn more about how versions work here: Versioning

The Email Notification block allows users to send email notifications as part of a workflow. It requires SMTP server setup to send the notification

Customizable Email Content

• Subject: Set the subject field to define the subject line of the email.

• Message: Use the message field to write the body content of the email. Message can be parametrised with data generated during workflow run. See Dynamic Parameters section.

• Recipients (To, CC, BCC): Define who will receive the email using receiver_email, cc_receiver_email, and bcc_receiver_email properties. You can input a single email or a list.

Dynamic Parameters

Content of the message can be parametrised with Workflow execution outcomes. Take a look at the example message using dynamic parameters:

message = "This is example notification. Predicted classes: {{ $parameters.predicted_classes }}"

Message parameters are delivered by Workflows Execution Engine by setting proper data selectors in message_parameters field, for example:

message_parameters = {
    "predicted_classes": "$steps.model.predictions"
}

Selecting data is not the only option - data may be processed in the block. In the example below we wish to extract names of predicted classes. We can apply transformation for each parameter by setting message_parameters_operations:

message_parameters_operations = {
    "predictions": [
        {"type": "DetectionsPropertyExtract", "property_name": "class_name"}
    ]
}

As a result, in the e-mail that will be sent, you can expect:

This is example notification. Predicted classes: ["class_a", "class_b"].

Configuring SMTP server

Those are the parameters configuring SMTP server:

• smtp_server - hostname of the SMTP server to use

• sender_email - e-mail account to be used as sender

• sender_email_password - password for sender e-mail account

• smtp_port - port of SMTP service - defaults to 465

Block enforces SSL over SMTP.

Typical scenario for using custom SMTP server involves sending e-mail through Google SMTP server. Take a look at Google tutorial to configure the block properly.

GMAIL password will not work if 2-step verification is turned on

GMAIL users choosing custom SMTP server as e-mail service provider must configure application password to avoid problems with 2-step verification protected account. Beware that application password must be kept protected - we recommend sending the password in Workflow input and providing it each time by the caller, avoiding storing it in Workflow definition.

Cooldown

The block accepts cooldown_seconds (which defaults to 5 seconds) to prevent unintended bursts of notifications. Please adjust it according to your needs, setting 0 indicate no cooldown.

During cooldown period, consecutive runs of the step will cause throttling_status output to be set True and no notification will be sent.

Cooldown limitations

Current implementation of cooldown is limited to video processing - using this block in context of a Workflow that is run behind HTTP service (Roboflow Hosted API, Dedicated Deployment or self-hosted inference server) will have no effect for processing HTTP requests.

Attachments

You may specify attachment files to be send with your e-mail. Attachments can only be generated in runtime by dedicated blocks (for instance CSV Formatter)

To include attachments, simply provide the attachment name and refer to other block outputs:

attachments = {
    "report.pdf": "$steps.report_generator.output"
}

Async execution

Configure the fire_and_forget property. Set it to True if you want the email to be sent in the background, allowing the Workflow to proceed without waiting on e-mail to be sent. In this case you will not be able to rely on error_status output which will always be set to False, so we recommend setting the fire_and_forget=False for debugging purposes.

Disabling notifications based on runtime parameter

Sometimes it would be convenient to manually disable the e-mail notifier block. This is possible setting disable_sink flag to hold reference to Workflow input. with such setup, caller would be able to disable the sink when needed sending agreed input parameter.

Type identifier

Use the following identifier in step "type" field: roboflow_core/email_notification@v1to add the block as as step in your workflow.

Properties

Name	Type	Description	Refs
name	str	Enter a unique identifier for this step..	❌
subject	str	Subject of the message..	❌
sender_email	str	E-mail to be used to send the message..	✅
receiver_email	Union[List[str], str]	Destination e-mail address..	✅
message	str	Content of the message to be send..	❌
message_parameters	Dict[str, Union[bool, float, int, str]]	Data to be used inside the message..	✅
message_parameters_operations	Dict[str, List[Union[ClassificationPropertyExtract, ConvertDictionaryToJSON, ConvertImageToBase64, ConvertImageToJPEG, DetectionsFilter, DetectionsOffset, DetectionsPropertyExtract, DetectionsRename, DetectionsSelection, DetectionsShift, DetectionsToDictionary, Divide, ExtractDetectionProperty, ExtractFrameMetadata, ExtractImageProperty, LookupTable, Multiply, NumberRound, NumericSequenceAggregate, PickDetectionsByParentClass, RandomNumber, SequenceAggregate, SequenceApply, SequenceElementsCount, SequenceLength, SequenceMap, SortDetections, StringMatches, StringSubSequence, StringToLowerCase, StringToUpperCase, TimestampToISOFormat, ToBoolean, ToNumber, ToString]]]	Preprocessing operations to be performed on message parameters..	❌
cc_receiver_email	Optional[List[str], str]	Destination e-mail address..	✅
bcc_receiver_email	Optional[List[str], str]	Destination e-mail address..	✅
smtp_server	str	Custom SMTP server to be used..	✅
sender_email_password	str	Sender e-mail password be used when authenticating to SMTP server..	✅
smtp_port	int	SMTP server port..	❌
fire_and_forget	bool	Boolean flag to run the block asynchronously (True) for faster workflows or synchronously (False) for debugging and error handling..	✅
disable_sink	bool	Boolean flag to disable block execution..	✅
cooldown_seconds	int	Number of seconds until a follow-up notification can be sent. .	✅

The Refs column marks possibility to parametrise the property with dynamic values available in workflow runtime. See Bindings for more info.

Available Connections

Compatible Blocks

Check what blocks you can connect to Email Notification in version v1.

• inputs: Llama 3.2 Vision, SAM 3, Polygon Zone Visualization, Distance Measurement, Pixelate Visualization, Roboflow Custom Metadata, Trace Visualization, QR Code Detection, Detections Transformation, Image Threshold, Rate Limiter, Image Slicer, Icon Visualization, Stability AI Outpainting, Dynamic Zone, Clip Comparison, Model Comparison Visualization, Single-Label Classification Model, Cache Get, Stitch Images, Florence-2 Model, Size Measurement, Single-Label Classification Model, Environment Secrets Store, Relative Static Crop, Absolute Static Crop, SIFT Comparison, SAM 3, Moondream2, Florence-2 Model, LMM For Classification, Anthropic Claude, Image Blur, Stability AI Image Generation, Local File Sink, Camera Calibration, Keypoint Detection Model, VLM as Detector, First Non Empty Or Default, Detections Filter, Gaze Detection, Background Color Visualization, Keypoint Detection Model, Delta Filter, Multi-Label Classification Model, Google Gemini, Model Monitoring Inference Aggregator, Roboflow Dataset Upload, Byte Tracker, Instance Segmentation Model, VLM as Classifier, CSV Formatter, Motion Detection, Morphological Transformation, Data Aggregator, OpenAI, Barcode Detection, YOLO-World Model, JSON Parser, CogVLM, Clip Comparison, Expression, Identify Changes, CLIP Embedding Model, Path Deviation, Crop Visualization, Grid Visualization, Buffer, Bounding Rectangle, SIFT, SAM 3, Anthropic Claude, Time in Zone, Detection Offset, Qwen2.5-VL, SIFT Comparison, OpenAI, Line Counter, Detections Consensus, Cosine Similarity, Path Deviation, Blur Visualization, Perception Encoder Embedding Model, Dimension Collapse, Perspective Correction, Bounding Box Visualization, QR Code Generator, Velocity, Segment Anything 2 Model, Polygon Visualization, Dynamic Crop, Identify Outliers, LMM, OpenAI, Classification Label Visualization, Mask Visualization, Time in Zone, Google Gemini, Circle Visualization, Ellipse Visualization, Image Convert Grayscale, Time in Zone, Object Detection Model, OCR Model, SmolVLM2, Image Preprocessing, Google Vision OCR, Color Visualization, Keypoint Visualization, EasyOCR, Email Notification, VLM as Detector, Image Slicer, Property Definition, Line Counter, Detections Combine, Byte Tracker, Roboflow Dataset Upload, Overlap Filter, Triangle Visualization, Slack Notification, Halo Visualization, Detections Stabilizer, Corner Visualization, Object Detection Model, Dot Visualization, Multi-Label Classification Model, Twilio SMS Notification, Image Contours, Detections Merge, Seg Preview, Reference Path Visualization, Byte Tracker, Webhook Sink, PTZ Tracking (ONVIF).md), Detections Classes Replacement, Instance Segmentation Model, Detections Stitch, Contrast Equalization, Camera Focus, Stitch OCR Detections, Stability AI Inpainting, Line Counter Visualization, Cache Set, Template Matching, Email Notification, VLM as Classifier, OpenAI, Depth Estimation, Continue If, Background Subtraction, Label Visualization, Pixel Color Count, Dominant Color
• outputs: Line Counter, Detections Consensus, Path Deviation, Llama 3.2 Vision, Blur Visualization, Perception Encoder Embedding Model, SAM 3, Perspective Correction, Polygon Zone Visualization, Bounding Box Visualization, QR Code Generator, Pixelate Visualization, Distance Measurement, Trace Visualization, Roboflow Custom Metadata, Segment Anything 2 Model, Image Threshold, Polygon Visualization, Icon Visualization, Dynamic Crop, Stability AI Outpainting, Dynamic Zone, Model Comparison Visualization, Single-Label Classification Model, LMM, OpenAI, Classification Label Visualization, Cache Get, Size Measurement, Mask Visualization, Single-Label Classification Model, Florence-2 Model, SAM 3, Time in Zone, SIFT Comparison, Moondream2, Google Gemini, Circle Visualization, Florence-2 Model, LMM For Classification, Time in Zone, Ellipse Visualization, Object Detection Model, Anthropic Claude, Color Visualization, Image Preprocessing, Image Blur, Stability AI Image Generation, Google Vision OCR, Keypoint Visualization, Local File Sink, Keypoint Detection Model, Email Notification, Line Counter, Roboflow Dataset Upload, Gaze Detection, Triangle Visualization, Slack Notification, Keypoint Detection Model, Background Color Visualization, Multi-Label Classification Model, Object Detection Model, Halo Visualization, Corner Visualization, Google Gemini, Model Monitoring Inference Aggregator, Roboflow Dataset Upload, Dot Visualization, Multi-Label Classification Model, Twilio SMS Notification, Instance Segmentation Model, Seg Preview, Reference Path Visualization, Motion Detection, Morphological Transformation, OpenAI, Webhook Sink, PTZ Tracking (ONVIF).md), Detections Classes Replacement, Instance Segmentation Model, Detections Stitch, Contrast Equalization, YOLO-World Model, Stitch OCR Detections, Stability AI Inpainting, Clip Comparison, CogVLM, Line Counter Visualization, Cache Set, Template Matching, Path Deviation, CLIP Embedding Model, Email Notification, Crop Visualization, OpenAI, SAM 3, Label Visualization, Anthropic Claude, Pixel Color Count, Time in Zone, OpenAI

Input and Output Bindings

The available connections depend on its binding kinds. Check what binding kinds Email Notification in version v1 has.

Bindings

• input

  • sender_email (string): E-mail to be used to send the message..
  • receiver_email (Union[list_of_values, string]): Destination e-mail address..
  • message_parameters (*): Data to be used inside the message..
  • cc_receiver_email (Union[list_of_values, string]): Destination e-mail address..
  • bcc_receiver_email (Union[list_of_values, string]): Destination e-mail address..
  • attachments (Union[bytes, string]): Attachments.
  • smtp_server (string): Custom SMTP server to be used..
  • sender_email_password (Union[secret, string]): Sender e-mail password be used when authenticating to SMTP server..
  • fire_and_forget (boolean): Boolean flag to run the block asynchronously (True) for faster workflows or synchronously (False) for debugging and error handling..
  • disable_sink (boolean): Boolean flag to disable block execution..
  • cooldown_seconds (integer): Number of seconds until a follow-up notification can be sent. .

• output

  • error_status (boolean): Boolean flag.
  • throttling_status (boolean): Boolean flag.
  • message (string): String value.

Example JSON definition of step Email Notification in version v1

{
    "name": "<your_step_name_here>",
    "type": "roboflow_core/email_notification@v1",
    "subject": "Workflow alert",
    "sender_email": "sender@gmail.com",
    "receiver_email": "receiver@gmail.com",
    "message": "During last 5 minutes detected {{ $parameters.num_instances }} instances",
    "message_parameters": {
        "predictions": "$steps.model.predictions",
        "reference": "$inputs.reference_class_names"
    },
    "message_parameters_operations": {
        "predictions": [
            {
                "property_name": "class_name",
                "type": "DetectionsPropertyExtract"
            }
        ]
    },
    "cc_receiver_email": "cc-receiver@gmail.com",
    "bcc_receiver_email": "bcc-receiver@gmail.com",
    "attachments": {
        "report.cvs": "$steps.csv_formatter.csv_content"
    },
    "smtp_server": "$inputs.smtp_server",
    "sender_email_password": "$inputs.email_password",
    "smtp_port": 465,
    "fire_and_forget": "$inputs.fire_and_forget",
    "disable_sink": false,
    "cooldown_seconds": "$inputs.cooldown_seconds"
}