Hello, we use our Sophos UTM as a SMTP Relay in front of our Exchange Servers. We have several Web applications that are hosted elsewhere an that use our Sophos as SMTP Relay - all of them figure in the list of "Allowed Hosts/Networks" under Host…

Hi, we have a couple devices (like notifications from our Anti-Virus Server or Printers) that need to send Mails to Office 365. I already created a Firewall Rule that allows traffic on the ports 25,465 and 587. I also tried rules like "HOST" -> ANY…

Hello. I am in process to set up a new UTM9 SG230 (Last firmware ver) appliance on our network, and while setting DKIM signing faced some strange problem: DKIM authentification passes on GMAIL and Port25 domains, but when I send a mail to Hotmail.com…

since firmware update to 9.400-9 i have had some issues with the SMTPD not running (6 alerts since update) which means mail doesn't even come into the UTM logs. I have rebooted and a flurry of mails come in, anyone else had issues?