Office 365 E-Mail not working, but Gmail is


I’m new to ERPnext and my first goal is to get the CRM module up and running.

We are having issues with the E-Mail domain / account settings.

We are using Office 365 with our own domain. The test-Email has imap and smtp auth activated.

While we can send out E-Mails, we can’t receive E-Mails, neither with Pop3 or IMAP.

ERPnext also returns the error b’-ERR Logon failure: unknown user name or bad password.’

But the password is correct for sure.

I tried an e-mail client (Thunderbird) via IMAP to see if we can receive E-mails. And yes, we can.

But in E-Mail Communication List ERPnext doesn’t show any incoming emails.

I setup a generic GMAIL E-Mail account and that one works just fine.

Help is greatly appreciated. Thanks a lot!

Check if the email domain settings are as below

Hello and thank you for your help!

The settings you have sent me are exactly the ones that I have used.

I have a feeling that it might have to do with Basic Authentication / OAuth. I will try to figure out how to get the credentials for connected app and connected user fields.

Maybe you know anything useful about it?

Thanks a lot!


Please check the Tutorial or the whole post.

I hope this helps.

Thank You!

1 Like

This helped and I got E-Mail to work! Thank you!

It took me a while to get it to work because I have never dealt with OAuth before and I’m not sure why this method works… but it does! :slight_smile: