Email Prevent losing forwarding connection
My company has moved from an exchange environment to a google apps environment and we hosted the prevent servers in Amazon to help accomodate mail flow. When I send a single email at a time the email goes right through with no issues. It is when I send 100 emails at a time I noticed the system seems to slow down a lot. In the console I can see the messages in the last 10 seconds is pretty much 0-2 messages in the last 10 seconds.
I also checked the smtpprevent_operational log and I noticed this.
25/Oct/12:12:19:10:364+0000 [INFO] (SMTP_CONNECTION.1205) Service connection closed (tid=27 cid=26 local=xxx.xxx.20.16:25 remote=xxx.xxx.0.147:4010 messages=0 time=20.02s)
25/Oct/12:12:19:18:680+0000 [INFO] (SMTP_CONNECTION.1201) Connection accepted (tid=2d cid=27 local=xxx.xxx.20.16:25 remote=xxx.xxx.0.147:4021)
25/Oct/12:12:19:19:226+0000 [INFO] (SMTP_CONNECTION.1202) Peer disconnected (tid=26 cid=22 local=xxx.xxx.20.16:25 remote=xxx.xxx.0.147:3979)
25/Oct/12:12:19:19:226+0000 [INFO] (SMTP_CONNECTION.1205) Service connection closed (tid=26 cid=22 local=xxx.xxx.20.16:25 remote=xxx.xxx.0.147:3979 messages=4 time=85.37s)
25/Oct/12:12:19:19:304+0000 [INFO] (SMTP_CONNECTION.1204) Forward connection closed (tid=26 cid=23 local=xxx.xxx.20.16:8044 remote=xxx.xxx.7.12:25)
25/Oct/12:12:19:22:533+0000 [SEVERE] (SMTP_CONNECTION.5203) Forward connection error (tid=29 cid=27 mta=xxx.obsmtp.com reason=null)
25/Oct/12:12:19:22:533+0000 [SEVERE] (SMTP_CONNECTION.5210) All forward hosts unavailable (tid=29 cid=<> reason=No available forward hosts)
25/Oct/12:12:19:22:533+0000 [INFO] (SMTP_CONNECTION.1205) Service connection closed (tid=29 cid=27 local=xxx.xxx.20.16:25 remote=xxx.xxx.87.30:49274 messages=0 time=20.02s)
The odd thing is if I telnet to the prevent server, which I have in forwarding mode, I can reach the next hop. If I open a new telnet session right after I can lose connection. I can try this several more times before it finally establishes a telnet session. The strange thing is we still have prevent servers up and running in our exchange environment and those servers still run perfectly fine going to the same exact last hop.
I am trying to make sure this is not a DLP issue and seeing if anyone else has had this problem when moving to a hosted environment.