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List: firewall-1
Subject: Re: [FW-1] smtp 550 mailbox unavailable
From: Lancer <lancer81 () CABLESPEED ! COM>
Date: 2003-05-29 14:00:01
[Download RAW message or body]
In our case unchecking SmartDefense option "add received header when
forwarding"
seems to have solved the problem.
L
------- Original Message --------
From: "Lancer" <lancer81@cablespeed.com>
To: "fw-1-mailinglist@amadeus.us.checkpoint.com"
<fw-1-mailinglist@amadeus.us.checkpoint.com>
CC:
Subject: smtp 550 mailbox unavailable
Date: 16/05/03
Every so often the firewall sends a 550 Mailbox unavailable response on
inbound mail and logs it as content security - access denied. If the user
resends it will work. This started after we upgraded from 4.1 SP5.
Using a Sniffer I found this occurs when the firewall waits about a minute
after the connection is opened before sending it's 220 message. If firewall
responds quickly the process succeeds.
remote server: syn
firewall: syn-ack
remote server: ack
~60sec delay
firewall: 220 cp fw-1...
remote server: ehlo
firewall: 250 hello
remote server: mail from
firewall: 250 ok
remote server: rcpt to
firewall: 550 mailbox unavailable
NG FP3 HF1 on Solaris 8 using Trend ISVW 3.7
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