Sandy your are a genius - Thanks.


Sanford Whiteman wrote:

>>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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