Hi,
if I send emails from thunderbird I have no problem,
if I send emails from roundcube using the same email address (same server) the recipient address reject my emails with this reason:
Sender address rejected: Domain not found (in reply to RCPT TO command)
It seems that roundcube add a localhost to the from header.
I can see from=<myuser@
localhost.mydomain.org>
Any idea on how to solve it?
How to remove that localhost?