Bug#823418: Info received (Bug#823418: exim4: Since the last update, it seems like some messages are rejected after DATA)

[David Hill]

Hello sir,

    The problem I have with this new behavior is that lots of mail server 
such as exchange and lots of antivirus/antispam/antimail/etc are sending 
mails with such lines...  I've seen even banks using commercial product that 
are not respecting that RFC document (821).

Thank you very much,

David Hill

-----Original Message----- 
From: Marc Haber
Sent: Friday, May 6, 2016 4:10 PM
To: David Hill
Cc: 823418 at bugs.debian.org
Subject: Re: Bug#823418: Info received (Bug#823418: exim4: Since the last 
update, it seems like some messages are rejected after DATA)

retitle #823418 add message to max_received_linelength DATA ACL
thanks


On Fri, May 06, 2016 at 11:13:51AM -0400, David Hill wrote:
>     This solved this issue ... Now, why is this enforced ?  This is a new
> behavior and a lot of smtp servers are not enforcing this limitation like
> hotmail and some banks.

Having excessively long head lines is an RFC violation, and exim
doesn't want to send on messages that violate RFCs. While it cannot
split such header line, it is reasonable behavior not to accept those
messages in the first place.

We should, however, add a meaningful message to this ACL, retitling
the bug appropriately.

Greetings
Marc

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