May not be connected with your problem, but are there any firewall's in
between, PIX in particular. If so continue otherwise I'm barking up wrong
tree.
We've had some problems with the fixup protocol smtp 25 command which
activates mailguard and allows only a subset of the smtp command suite. This
caused, for us, exactly this problem of stopping large e-mail attachments.
If anyone has any suggestions for rectifying this other than no fixup smtp
25 I would be interested to hear.
Regards,
Gareth
<[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hey all,
>
> Am studying CIT related material and am wondering what one would look for
> when troubleshooting SMTP data transfer over an FR circuit, say at 128K
> CIR, 256 port speed.
>
> Situation:
>
> Corporate site has 3600 class router with a serial interface configured
> with T1 port speed and only 256K CIR. One remote site of 11 has 2500 class
> router configured with 256K port speed/128K CIR. SMTP servers exist at
> both sites. SMTP server at remote does not receive Internet e-mail, it
> relies on corporate site SMTP server to supply Internet and corporate wide
> mail.
>
> Problem:
>
> Clients at remote site cannot send mail with attachments larger than 1 MB
> without 'timing out'. They can, however, receive mail with large
> attachments from the Internet and corporate. Remote FR circuit tests
clean
> with no FECN or BECNs to report.
>
> Any suggestions on approaches to this problem? Need more info?
>
>
>
>
>
> Thank you,
> Raul De La Garza III
> CCNA NNCSS MCSE CNE
> Senior Network Engineer
> EmCare Incorporated
>
>
> Brave men are all vertebrates: they have their softness on the surface
and
> their toughness in the middle. ?G.K. Chesterton
>
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