Welcome!

> Is it common practice for IMAIL users to set their domains up in the
> form:

> domain.com

> instead of in the form:

> mail.domain.com

No,  the  latter  is traditional for Imail servers, not because of RFC
but  to  best  deal  with  Web Messaging and Web Calendaring URLs. For
details,  search  the  archives  for  my post in the thread "Store and
Forward, OHN, Alias."

> The reason I ask is because many mail servers follow RFC and require a
> fqdn in the HELO.

domain.com  (we use the standard 'example.com' on the list, FYI) IS an
FQDN.  But  the  "problem" with using it as the official host name, as
explained  in the archives, is not RFC-related, it's DNS-related. Only
if  your IMail machine is not just the MX for example.com, but ALSO is
the A for example.com in DNS, are you free to use the shortened name.

> However, if you use mail.domain.com then all email coming from webmail
> has [EMAIL PROTECTED] (which some people do not like).

...until users or admins change the Reply-To:.

-Sandy


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