Hello all,

I have problems with my zimbra email system on one of the specific email address, whenever the senders send an email to that address, the zimbra email system did not deliver the email but it sent an error message back to the senders saying "host[] said: 554 5.4.0 Error: too many hops (in reply to end of DATA command)", it is only happening with one specific email address, all of the other email addresses are good to go. Please help. Thank you very much.