xinetd[#]: Deactivating service smtp due to excessive incoming connections. Restarting in 30 seconds.

Thursday, November 15th, 2007

This happened to a Plesk 8.x Linux (RH) server, the problem was that smtp service was up and running, and the queue was very light , but smtp wouldn’t accept any connections at port 25 even from localhost.

In the /var/log/messages I saw this disturbing message:
xinetd[#]: Deactivating service smtp due to excessive incoming connections. Restarting in 30 seconds.

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Posted in Mail Server, Security, Unix/Linux Various | No Comments »

Smtp Connections list

Monday, June 4th, 2007

You can check what connection you have via smtp protocol with the simple command:

netstat -a | grep smtp

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How to Prevent the IIS SMTP Virtual Server from Relaying E-mail Messages

Wednesday, May 30th, 2007

Do the following:

1) Start Internet Information Services Manager or open the Internet Information Services (IIS) snap-in.

2) Expand Server_name, where Server_name is the name of the server, right-click Default SMTP Virtual Server, and then click Properties.

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Posted in IIS, Security, Windows | No Comments »