Prob sending to certain domains via default SMTP virtual server

[Donkey1]

The setup I have here is all emails are handled via the default SMTP virtual server within ex2k. Outgoing go via our lan through a Watchguard III firebox through a router and then via a leased line to the internet. No conectors are configured within ex2k. The firebox is configured for SMTP proxy in and filtered SMTP out.

I am having trouble sending emails to certain domains. When ever some sends an email to 'xxxx@xxx.freeserve.co.uk' or xxx@xxx.fsnet.co.uk they remain in the outgoing queues with 'retry'. Looking at the properties of the queue, all it says is that an SMTP protocol error has occured.

I have telneted their mail server on port 25, but when I enter HELO or EHLO all I get back is:

501 Syntactically invalid HELO argument(s)
501 Syntactically invalid EHLO argument(s)

Does any one know what this means, normally I would expect back a welcome message. Is this what is causing my emails not to be delivered? Any help would be appreciated.

Thanks....Andy.

 

[Marcs41]

are your domains also freeserve and/or fsnet ? _{If 'something' 'somewhere' gives 'some' error, excpect random guesses or no replies at all. Please specify details.
Free Tip: The F1 Key does NOT destroy your PC! - Marc}

 

[Donkey1]

No, I run DNS servers here locally behind the firewall. I had an email back from freeserve saying that they were aware there were problems sending to freeserve accounts from exchange. They suggested changing the exchange connection from DNS to SMTP.

I am not quite sure what that means.

I have tried creating an SMTP connector with an address of a freeserve account in it. Unfortunately that hasn't worked either, I think I may be getting the smarthost address wrong. At the moment I am putting in the nameserver address of our ISP.

The error message has changed in the queue from SMTP Protocol error to 'the remote server did not respond to a connection attempt'.

Any clues?

 

[Marcs41]

They probably mean to send all your mail via a Smart Host at your ISP. In that case, you don't have to worry about DNS. Check with your ISP for the relay server, it's usually something like relay.yourisp.com . _{If 'something' 'somewhere' gives 'some' error, excpect random guesses or no replies at all. Please specify details.
Free Tip: The F1 Key does NOT destroy your PC! - Marc}