Hi Carl

Yes we have firewall . But these mails pass our  firewall s antispam/antivirus engine successfully . I have checked the logs . It is forwarded to domino but no trace at mail server.

Also  for internal addresses it is working but not for others domains.

Hi casl

Sorry It was firewall IPS update which misbehaved. everything is back to normal after optimizing policy.

Thanks for your help

Regards

Hi Carl

Sorry It was firewall IPS update which misbehaved. everything is back to normal after optimizing that policy.

Thanks for your help.

Regards