If you want to verify if your (or any) server is running sendmail (and to determine the version), merely connect to that server on port 25 using telnet. For example, run the following command (either from UNIX or Windows):
telnet engg3.faximum.com 25
If the server is running sendmail then the response will be of the form:
220-engg3.faximum.com Sendmail 8.6.8 ready at Tue, 29 Feb 2000 04:07:30
220 ESMTP spoken here
To close the session, merely type QUIT
© 2000 Faximum Software Inc.