Message Doubles

[Alex Neuman van der Hans]

Stephen Swaney wrote:
> I suggest that you check for a banner similar to:
>
> Connected to mail.xxxx.com (68.1.1.166).
> Escape character is '^]'.
> 220
> ****************************************************************************
> **************************************************
>
> When you telnet to port 25 on the receiving system. This is a PIX connection
>
> Try turning off this protocol. It appears to have little if any security
> value. Please see:
>
> http://www.issociate.de/board/post/195084/SMTP_Fixup_--_On_or_Off???.html
>
>   
I have had several clients with this problem. I've had to explain to 
them how this breaks everything from AUTH to RBL's to RFC's and a bunch 
of other TLA's and FLA's.