> is  sending  mail  to  anyone, that is not within the local host, is
> relaying?

Anyone  that  is  not  within  the local hosts and host aliases on the
IMail  server is remote. Sending to a remote server from your (remote)
client is relaying. See below.

> That to me is sending email.

It's all email. :)

> ~So  sending  email  from  a.com  to  nonlocal.com is relaying?

Yes,  because  "you"  (your  MUA,  whether  WM or Win32) are logically
remote  to  the  server.  There's  always  a third level. How your MUA
presents  yourself  to the MTA dictates whether the MTA "treats you as
local"--but you are always logically remote.

> I've  thought  relaying was sending mail from nonloacal.com to a.com
> to othernonlocal.com was relaying. (a.com being the local host)

Remember  that your MUA has no inherent domain affinity to the MTA. It
has  domain(s)  claimed  in  your  EHLO  and  MAIL FROM, but those are
utterly untrustworthy. It only has an IP. So, in identifying who "you"
are,  the  MTA  must decide to accept your MAIL FROM (readily forged),
your  IP (impossible to forge with an adequate firewall), or your SMTP
AUTH/WM  credentials  (impossible  to  forge,  by  definition,  though
possible to socially engineer).

> Strange enough though I can post to this list and it's not in my local 
> domain and I have relay mail for no one checked.  Everyone must use 
> their username/pwd to send & receive email.

Yes,  you  are  using  option  3,  SMTP  AUTH credentials, to identify
yourself  to  the  server. If you did not use AUTH, you could not send
outside IMail's local domains.

> Is this working right or is it broke?

It's working just fine.

-Sandy


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