Re: Sending to External Email Attachment Blocking

Hi Rich,

That command returns "250-SIZE." I also tried changing the limits and the
change was also shown via the telnet command. I assume that this means that
the metabase update thread works.

I’m pretty sure that the problem is with our server, not the receiving
server. I am unable to send 2MB attachments to a hotmail.com address, but if
I use my ISP's web mail for the account it works.

I can see that this problem might be heading towards a dead end. But any
more help would be greatly appreciated.

Tom

"Rich Matheisen [MVP]" wrote:

> Tom Trobe <TomTrobe@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> >Kirill,
> >Thanks for your responce.
> >
> >What should I check the firewall for?
> >
> >I use ISA 2004 SP1 that connects through a Netgear Router. I have tried
> >removing ISA, but the error still occurs.
>
> Before you start fooling with the network gear, try something real
> simple. From the keyboard on the Exchange server, start a command
> prompt and type:
>
> telnet <server> 25
> EHLO
>
> You should see "250-SIZE" in the response if you have no limit set on
> that SMTP server. If you see something that's different, or if you see
> something that's different to what you have in the the parameters,
> then you may have a problem with the thread that updates the metabase
> with the information from the active directory. Restarting the System
> Attendant service may fix that.
>
> If you see the expected values in that EHLO response, try the telnet
> thing from outside your network and see of the response is different.
>
> If everything looks as expected, have a look at the SMTP protocol log
> and verify that the error isn't coming from the target server. Infact,
> you can try that telnet stuff using the target server and see if
> they've got message limits set. If they don't allow ESMTP (IOW, you
> get an error from the EHLO command) you'll have to contact them to
> find out what it is.
>
> --
> Rich Matheisen
> MCSE+I, Exchange MVP
> MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
> Don't send mail to this address mailto:h.pott@xxxxxxxxxxxxx
>
.

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