SMTP and delay problems after server upgrade

We recently upgraded our Domino environment to 8.0.2 on windows 2008 servers.

It’s two domino server that are clustered.

We had some problem with the SMTP service and disabling the SSL port for outbond SMTP seemed to solve the problem.

I can see often in the router log many of theese error messages:

2008-10-16 02:03:29 Router: Failed to connect to SMTP host SERVERADDRESS.COM because The server is not responding. The server may be down or you may be experiencing network problems. Contact your system administrator if this problem persists.

2008-10-16 02:03:29

Yesterday the Router service got “awaiting reactivation” and ‘tell router quit’ - ‘load router’ didn’t work. We hade to restart the hole server.

Can it be settings for the SMTP problems and the router service? We also have huge delay sometimes on external e-mail.

It’s pretty much the same settings that we had on the Domino R7 server

Subject: Router: Failed to connect to SMTP hos

These errors indicated that there is a connection problem between Domino and the destination SMTP Host and Domino cannot connect and complete the SMTP conversation. But because the router could send messages to other domains and receive messages inbound indicated that the router and SMTP listener task were functioning well and there was a good network connection to the internet. So it was only certain outbound connections that Domino had an issue with.

The fact that eventually the messages do get sent to the internet successfully suggested that it is not a configuration issue on Domino’s side but possibly a temporary connection or networking issue. That it was very likely that there is a DNS issue as Domino passes the outbound destination internet domain to the DNS Service to resolve. If the DNS service is unreliable and temporarily unavailable then Domino

outbound SMTP mail routing will stop functioning too.

Using Windows DOS command to TELNET to one of the hosts mentioned in the error messages using port 25, and when issuing “HELO” and “MAIL FROM” SMTP commands, an error message appeared indicating that the customer’s domain is Black Listed by that destination internet domain, as in the following example:

TELNET [Remotehost.com] [PORT]

HELO MyHost

MAIL FROM: <Sender’s E-mail Address>

verify that no message indicating that MyHost or the ip address of MyHost is not Black Listed or other error messages

Subject: SSL port active for SMTP

The problem was that SSL port were active for SMTP outbound in the server document.

Subject: SSL Port is Disabled Please Help

I had same problem, Domino r8.0.2 on Win2003 Server.