Ticket notification error

alliancesupport · Post by **alliancesupport** » 03 Nov 2016, 17:46

I can send admin emails and fetch mails just fine, but when OTRS receives a ticket and tries to send a notification I'm getting this error:

Nov 3 11:40:11 mycompany-otrs postfix/pickup[25810]: 3FF9A810EA8E: uid=1000 from=<>
Nov 3 11:40:11 mycompany-otrs postfix/cleanup[26649]: 3FF9A810EA8E: message-id=<1478187610.777877.912722764@otrs.mycompany.com>
Nov 3 11:40:11 mycompany-otrs postfix/qmgr[1994]: 3FF9A810EA8E: from=<>, size=10888, nrcpt=1 (queue active)
Nov 3 11:40:23 mycompany-otrs postfix/smtp[26652]: 3FF9A810EA8E: to=<me@mycompany.com>, relay=smtp.office365.com[40.97.161.50]:587, delay=12, delays=0.16/0.11/6.2/5.7, dsn=5.7.60, status=bounced (host smtp.office365.com[40.97.161.50] said: 550 5.7.60 SMTP; Client does not have permissions to send as this sender (in reply to end of DATA command))
Nov 3 11:40:23 mycompany-otrs postfix/qmgr[1994]: 3FF9A810EA8E: removed

I'm not sure how to confirm which email account it's attempting to use. Where is this configured? The sender email addresses I have configured have no problems.