I got an error message while sending an email to a colleague via Gmail, I can send him emails with any other email address but the problem appeared with Gmail email address only.
This is the mail system at host s173.goserver.host.
I’m sorry to have to inform you that your message could not be
delivered to one or more recipients. It’s attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can delete your
own text from the attached returned message.
The mail system email@example.com (expanded from <xxxx.com>): can’t create user output file. Command output:
/bin/sh: 0: Can’t open /usr/local/bin/clamfilter.pl procmail: Error
while writing to “/usr/local/bin/clamfilter.pl” procmail: Rescue of
unfiltered data succeeded Not enough disk quota procmail: Program
failure (77) of “/usr/lib/dovecot/deliver” procmail: Quota exceeded