>Can the IP address of the SMTP server be used in the cfg file
>instead of a FQDN?

Yes, if you're using LISTSERV 14.3 or later:
<http://www.lsoft.com/manuals/1.8e/relnotes/LISTSERV14.3-Release-Notes.html#miscfixes>

(With earlier LISTSERV versions it still may work, depending on the
operating system, but it is not officially supported.)

Thanks,
--
Jacob Haller, Technical Support, L-Soft international, Inc
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