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Connecting Office365 Accounts

Enabling SMTP Authentication

Leon Lin avatar
Written by Leon Lin
Updated over 2 months ago

If you’ve connected an Office365 email account to 1stCollab, you might need to enable Authenticated SMTP (which is off by default) in order for emails to send. This guide provides instructions for doing this.


‼️ Prerequisites: You must be an admin in your Office365 account to be able to make the changes below. If you are not an admin, please loop in your admin who can make those changes for you.

If you don't have access to these settings because you are hosted with a provider that doesn't allow you to make such changes - please reach out to their Support Team and ask them to enable legacy authentication via SMTP/IMAP for you (feel free to share this article with them).

GoDaddy Accounts: Please see this article for how to Enable SMTP Authentication.

As an Office365 Admin, go to admin.microsoft.com and Users > Active users and open your user:

From there, go to Mail > Manage Email Apps:

From there take a look at the Authenticated SMTP setting:

  1. if it is already checked then first uncheck it, Save Changes, check it again, Save Changes again

  2. if it's not already checked, then check it and Save Changes

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