Re: Unable To Relay

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Hi Nagendra,

first thanks for your response.
We use ISA Server 2004 and Netscreen Firewall. SMTP tranfer worked well
before. I don't know why, we cannot send now any mail to external domains.
Besides there is other problem (perhaps the same problem). We configured the
front-end Exchange as Bridgehead server and this server is also our RPC proxy
server. If we send mails to external domains, not front-end (Bridge head)
but back-end server tries to send mails. It worked taht also well before.
Perhaps the both problem have the same problem source?
Any idea?

Best Regards
Mustafa

"Nagendra Sitharamaiah [MSFT]" wrote:

> Cicek
>
> if you have not already done so, please check teh following KB articles:
>
> 288593 Exchange Cannot Receive SMTP Mail Through Firewalls :
> http://support.microsoft.com/?id=288593
> 895857 SMTP mail cannot be sent or cannot be received in Exchange Server :
> http://support.microsoft.com/?id=895857
>
> Regards
>
> --
> Nagendra Sitharamaiah
> MCSE, CCNA, MCT, CISSP
> Microsoft
> Use of included script samples are subject to the terms specified at
> http://www.microsoft.com/info/cpyright.htm
> This posting is provided "AS IS" with no warranties, and confers no rights.
> Please do not send email to this address, post a reply to this newsgroup.
>
> "mustafa" <mustafa@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:2625D960-F244-4D4A-AD2E-7B31B822772D@xxxxxxxxxxxxxxxx
> > Hi!
> > We deployed Exchange 2003 with front-end and back-end Exchange.
> > We use SMTP connector to tranform the mails.
> > If our internal users send any mail to any external domain, they get
> > "#5.7.1
> > smtp;550 5.7.1 Unable to relay" error message.
> > How can we solve the problem?
> >
> > Best Regards
> > Cicek
>
>
>
.

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