Email Receiving problems

[ali akbar]

Hi,
i have very strange problem with my domain.my users receive email but some
time they will not receive some emails. for example, i send one email to user
he did not receive. i send it again he receive for external domain.i enable
the logging on my receive connector and i see in the logs that when user not
receive the email, transction stop at
BDAT 34567 LAST
after that there is not 250 response and user receive the NDR
"ERROR WRITING SMTP PACKETS" and
"Reporting-MTA: dns;domail3.emirates.net.ae (tcp-daemon)

Original-recipient: rfc822;musta...@nuroluae.com
Final-recipient: rfc822;musta...@nuroluae.com
Action: delayed
Status: 4.4.7 (unable to deliver this message after 1 day)"

but when the transction accure successfully i can see the 250 response after
the BDAT command.

[Ed Crowley [MVP]]

Look at your firewall and be sure that it isn't corrupting SMTP messages.
Some firewalls (like a Cisco PIX with the Mailguard feature) can interfere
with SMTP traffic and corrupt it.
--
Ed Crowley MVP
"There are seldom good technological solutions to behavioral problems."
.

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