Weird Zimbra delivery failure
 

Dear All
kindly i am facing problem since few days
Some servers put us in spam dlist so we no more send to them
others try to send us but we don't get any e-mails from them

every email send from any member in any DList@domain.com
it sent to unknown email address shown in the log as follow
<abc@gmail.com>
plus any one sent to this Dlist from outside the domain, they received mailer-daemon@googlemail.com
Delivery to the following recipient failed permanently:

abc@gmail.com

Technical details of permanent failure:
Storage quota exceeded

P.S
No one of the Dlist put this email in cc or bcc
i had checked out from server side rules is also empty from this intruder email
/conf/restricted_senders
/conf/outgoing

i had checked fetch mail and it's only bcc itself

please advise urgently
thanks

When emailing are you using SMTP on the zimbra system or using a smarthost? Are you getting any bounceback messages?

Also you mention:

Is there any issue with disk space or mailbox storage limitations?

Are there any log files which you can look through?

Appreciate you for your care to support
Problem has been solved
I will closed this thread
May thanks