Forge

Sendgrid Connector allows you to send email over SendGrid’s v3 Web API.

This asset provides a service that can help you send emails via SMTP with a HTML body. It is fully customizable down to Host and Port level.

Many people have problems with emails in reactive to get the formatting they want. I could create an example that works.

See the idea
https://www.outsystems.com/ideas/11821/enable-using-html-content-in-email-body-in-reactive-app/

And the forum
https://www.outsystems.com/forums/discussion/76882/outsystems-email-templates-reactive-emails-in-outlook/

If you want to add more HTML (e.g. a graph) inside the email than you will run into the issue that it is not possible to insert HTML in the reactive email. What however is possible to put all you extra stuff in an anonymous screen and output it as a PNG file by using UltimatePDF. This PNG binary data can then be send to the reactive email and display it as a image with type BinaryData.

I am not able to upload it because the oap is around 390kb and OutSystems limits the oap size to 256 kb.

This extension work as an integration module for Email service on Exchange Server using Exchange Web Service (EWS)

SMTP/IMAP email sending and receiving manager. Everything will be much easier for you, your applications will connect to this application through API to send and receive emails in a very simple way.

Advanced Email Validator – Regex, MX & SMTP Check is a powerful email validation component for OutSystems. It ensures that email addresses are correctly formatted, have valid mail servers, and (optionally) exist on the recipient’s mail server. This helps prevent invalid or fake email sign-ups, improves data quality, and enhances email deliverability.

This component leverages C# in Integration Studio to perform a three-step verification:
✅ Format Validation – Uses regex to check if the email follows a proper structure.
✅ MX Record Lookup – Confirms if the email’s domain has a mail server configured.
✅ SMTP Handshake – Connects to the mail server and verifies if the email exists.

By integrating this asset into your OutSystems applications, you can ensure higher-quality user data, reduce bounce rates, and prevent fake sign-ups. 🚀

Send emails with Mailgun and consume Mailgun event webhooks.

Send email using external API
Implement the logic as shown in attached images.
You can send unlimited mails to any domain.
-by Prashant Salunke

Used to valid that the email is Work(Official) email or not. we can use this in both client side and server to validate work email. we have also one action for specific domain to validate e.g, "company.com".  As of now it will restrict to domains like gmail.com ,yahoo.com, outllok.com, live.com, mailinator.com, yopmail.com etc.

This library empowers you to assess and validate a wide range of text data effectively. It is built upon a JavaScript library that can be found at this URL: https://github.com/validatorjs/validator.js.

Email application for the main API's Performance application.

Wrapper for Postman Programmatic Email API. This implementation is especially useful for older on premise OutSystems which does not support multipart form data. 

Generate EML is an OutSystems extension that creates a fully compliant .eml email file (MIME format) from structured input.