I am not using the POP3 proxy as I am not licensed for the email protection component of UTM.
I have a standard firewall rule in place to allow all Email Messaging protocols and TLS 587 from my LAN to any.
When my clients sync outlook they do not receive any emails. Outlook is configured to access gMail POP3 on port 995, when their requests hit my firewall, the rule is green and the traffic is allowed, however I only see a single entry on the live log, with the [SYN] tag.
13:41:53 Packet filter rule #4 TCP
172.16.84.132 : 55230
→
74.125.71.108 : 995
[SYN] len=52 ttl=126 tos=0x00 srcmac=30:f7:0d:4e:0d:7f dstmac=d4:be[:D]9:fb:98:81
Could anyone assist me troubleshooting this? It was working fine on Monday with Microsoft TMG, now we have replaced with UTM it has stopped working.
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