>I wonder if anyone else has noticed this:
>
>We receive SMTP port probes from a host called list.ipswitch.com on IP
>156.21.1.21.; on both our mail- and our web(!)server.
>
>Any clue about this?

Well, it depends on what you mean by "SMTP port probes".

Without further information, it would sound simply like the IMail mailing 
list is sending you mail.  That's the IP address of the server that 
Ipswitch uses to send out the IMail mailing list.

What is the specific issue?  Are there connections that aren't actually 
sending any mail?

For the web server, are there any MX records that point to it?  Does your 
main domain name have an A record that points to it (example.com, not just 
www.example.com)?

How often does it happen?

                                                            -Scott

Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for 
IMail.  http://www.declude.com



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