Morning all,
Our network admin recently left the business shortly after implementing UTM web, email and network protection. Most of what I know of UTM has been a crash course learnt via this forum in the past week, I'm hoping you can assist with a problem we have with a delay in smtp traffic.
UTM Version: 9.203-3
Exchange 2013 SP1
I have had reports of outbound email from multiple users taking up to two days to reach the recipient, this has been observed with multiple recipient addresses to different domains.
I have also noticed smaller delays of up to 45 mins for incoming emails, this is not as frequent as outgoing mail.
Reading various setup guides on this forum I'm confident UTM has been setup using some the basic guides found here:
SMTP Settings
Global - Simple Mode
Routing:
- Domains - all listed
- Host list - Exchange host
- Recipient Verification - With Callout
Antivirus:
- Reject Malware, Dual Scan, everything else default
AntiSpam:
- Recommended RBLs
- Greylisting, BATV & SPF ticked
Relaying:
- Host Based - Exchange host
I have confirmed the smarthost is pointing to UTM correctly in exchange, have also been keeping an eye on the SMTP Spool, I'm not seeing any of the delayed emails within.
We previously used SpamTitan before the switch to UTM, never experienced delays to this extent before the change over.
Any advice or assistance is greatly appreciated.
Thanks
Dave
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