Authenticated SMTP on Front-End

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance



I try to get SMTP running on a EX2K3 FE. Need it for IMAP4 clients. I
want them to authenticate, which they seem to do successfully. But then
they can't send and get a 5.7.3 Error:

220 server.mydomain.de Microsoft ESMTP MAIL Service, Version:
6.0.3790.211 ready at Thu, 7 Apr 2005 17:33:58 +0200

EHLO [192.168.100.66]
250-server.mydomain.de Hello [192.168.100.66]
250-TURN
250-SIZE
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8bitmime
250-BINARYMIME
250-CHUNKING
250-VRFY
250-X-EXPS LOGIN
250-X-EXPS=LOGIN
250-AUTH LOGIN
250-AUTH=LOGIN
250-X-LINK2STATE
250-XEXCH50
250 OK

AUTH LOGIN
334 VXNlcm5hbWU6

Ymx1ZWNvbVxoeg==
334 UGFzc3dvcmQ6

TW9ybzhrdUw=
235 2.7.0 Authentication successful.

MAIL FROM:<sender@xxxxxxxxxxx> SIZE=390
454 5.7.3 Client does not have permission to Send As this sender.

In the eventlog I see:
MSExchangeTransport 1708 for successful authentication

But also:
MSExchangeTransport 1710 for the 5.7.3 Error

What am I doing wrong? Tried everything I could think of yet.

henrik
.



Relevant Pages

  • Re: Custom redirectURL
    ... > In Forms based authentication mode, say my login page has to be ... > redirected to "db.aspx" if the login was successful, ... > this redirect without a Response.Redirectusing FormsAuthentication ...
    (microsoft.public.dotnet.framework.aspnet)
  • Re: Authenticated SMTP on Front-End
    ... Some of my users in the AD miss the "principal self" SID in the ACL. ... > 250-X-EXPS LOGIN ... > 235 2.7.0 Authentication successful. ... > MSExchangeTransport 1708 for successful authentication ...
    (microsoft.public.exchange.connectivity)
  • RE: [opensuse] joining Suse box to AD
    ... Log in as a user, get a prompt for the password, authentication is ... successful but this error occurs; ... In the Yast module for Windows Domain Membership, ... sub-option to "Create Home Directory on Login. ...
    (SuSE)
  • Re: Custom redirectURL
    ... You can redirect to any page you want to. ... same link and login page for both. ... > In Forms based authentication mode, say my login page has to be ... > redirected to "db.aspx" if the login was successful, ...
    (microsoft.public.dotnet.framework.aspnet)
  • Re: Basic WWW Authentication function fails
    ... "authenticate" PHP FUNCTION IS MADE PART OF CORE IN THE FUTURE ... > AUTHENTICATION SUCCESSFUL WITHIN IIS WITH ISAPI ...
    (alt.php)