MS 365 SMTP Mailing not working

1

We are encountering an issue with our deployment on Render related to sending emails via Nodemailer.

Here’s a summary of our situation:

  • We’ve tested Nodemailer locally using both a personal email account (e.g., ...@outlook.com) and an organizational email account (user@domain.com) configured with MS 365.
  • Locally, both configurations work perfectly, and emails are sent without any issues.
  • However, after deploying the application on Render, only the personal email account (via ...@outlook.com) is functioning correctly for sending emails. The organizational email account (using MS 365) fails to send emails when hosted on Render.

We would appreciate your assistance in identifying and resolving this issue. Could you please advise on any potential network restrictions, configuration settings, or other factors within Render that might affect the use of MS 365 as the SMTP server for organizational emails?

2

Hi Nova,

We don’t support SMTP traffic. You’ll need to leverage a mail service that works with an HTTP API.

I’d encourage you to upvote this feature request at https://feedback.render.com/features/p/new-smtp-service. It helps to include as much context as possible about your use case, the problem you’re looking to solve, and how you’re getting around it today to help us develop the best possible solution.

We rely heavily on customer feedback as a part of our planning and product roadmap process, so capturing interest on the feature request page is very helpful.

Regards,

Matt

3

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.