31 Mar 2014 01:16:24 -0000 от "John Levine" <johnl@xxxxxxxxx>:
>>Are there MTAs that make use of the Received: header for loop detection?
>
>Mine has since 1998. If the SMTP daemon sees 100 Received: headers in
>an incoming message, it rejects it. This is both in qmail's SMTP
>daemon and mailfront, a better SMTP daemon often used with qmail.
A little more poking around finds that sendmail and postfix also do,
although their default limits are 25 and 50 headers, respectively,
rather than 100.
С уважением,
mohammed serrhini
serrhini@xxxxxxx