Notification email issue

[eyucks]

Hi all,

I have an issue regarding notification.

1. I Create email ticket manually from OTRS portal.
2. Then OTRS should send out email notification to customer.
3. I checked no email received from customer but OTRS create new ticket after email bounced back to OTRS.
4. Before this it's working fine and didn't change any setting in email or else. Any idea ?

Thu May 29 06:16:03 2014 info OTRS-otrs.PostMasterMailbox.pl-10 Sent no auto response to 'MAILER-DAEMON@CHBSOTRS01.site' because config option SendNoAutoResponseRegExp (/(MAILER-DAEMON|postmaster|abuse)@.+?\..+?/i) matched.
Thu May 29 06:16:03 2014 info OTRS-otrs.PostMasterMailbox.pl-10 New Ticket [2014052910000231/Undelivered Mai] created (TicketID=9127,Queue=Postmaster,Priority=3 normal,State=open)
Thu May 29 06:15:30 2014 info OTRS-CGI-10 Sent email to '"Service Desk" <support@ashraf.com>' from 'email <support@hellomy.com>'. HistoryType => EmailAgent, Subject => [GMIS#2014052910000222] test cc ashraf;
Thu May 29 06:15:30 2014 info OTRS-CGI-10 New Ticket [2014052910000222/test cc ashraf] created (TicketID=9126,Queue=2nd Level Service Desk,Priority=3 normal,State=open)

Attached example OTRS create a new ticket.

I have tested another customer using gmail account and its working fine.
Note : support@ashraf.com using MS365 email.

Thanks in advance

- Ashraf

[jojo]

if the mail bounces it does not seem to be an OTRS issue.