RE: How the mail authentication happens ?

  • From: "Ripon Bahl" <ripon.bahl@xxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Sat, 7 May 2005 13:55:44 +0530

Hi Manjeet Singh


It seems that in the second forest exchange gateway server SMTP VS you have
not specified anonymous authentication. There is no authentication required
in incoming mails. The authentication type should always be anonymous. On
the backend servers you can specify other authentication.


Check your SMTP VS settings. It seems that the issue is underlying there. 






From: Manjeet Singh [mailto:Manjeet.Singh@xxxxxxxxxxx] 
Sent: Thursday, May 05, 2005 2:07 PM
To: [ExchangeList]
Subject: [exchangelist] How the mail authentication happens ?



I have confusion related to mail authentication.



I have a exchange forest - when mails are coming from external domain (from
yahoo, hotmail etc) where is the authentication happen?


I have no problem is sending and receiving mails.


Now I have created a new forest and create Trust between two forest, create
SMTP connector between two forest and I am able to resole DNS properly.. But
the mails are bouncing back, say you do not have permission to send to this


Now the solution is give a user sends as right and adds that user to
outbound security in SMTP virtual server of remote forest. So do this for
both the forest.


Now my question why this is required??


There should be no difference between whether a mail is coming from a remote
exchange forest or from yahoo account. Both should be consider as external



So how my Exchange accept the mails from Yahoo and not from another exchange


I hope I am able to put my query properly.











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