Email integration issue

I found ERPNext have some bug in email integration.
When i set email id as a default sender then my other user not able to send mail with his email id. Please suggest solutions

Can you please put steps to replicate the same? Steps you followed?
We are using Multiple ID for emails, and it is working fine. :slight_smile:

We had the same issue when we moved our ERPnext from one vps to a new one. (it worked on the old one). And we could not fix that until we upgraded to v13-beta and this resolved our case.