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Re: [Dolibarr-dev] A serious pb with some email

From: Régis Houssin
Subject: Re: [Dolibarr-dev] A serious pb with some email
Date: Wed, 8 Feb 2012 20:33:32 +0100

I can test with orange, free, sfr

Régis Houssin
Tél. +33633020797

Le 8 févr. 2012 à 19:00, "Laurent Destailleur (eldy)" <address@hidden> a écrit :

> Hi.
> I want to let know to all Dolibarr developers that a problem to send email 
> using the php native mail function was identified and solved.
> Problem occurs with some recipient emails hosted by some internet providers 
> like Orange in france. The result is that email corrupted and can't be read 
> by recipient (text contains SMTP header data and attachment are not 
> recognized).
> After working several days on this problem, we found the reason:
> There is a very serious bug into Orange email receiving servers. So this is 
> nor a bug into Dolibarr, nor into PHP. When Orange receive a mail for one of 
> its customer (address@hidden), the header of email is cut in the middle of 
> header instead of at end. This happens when header lines end with CR+LF 
> characters and not when line ends with LF alone.
> Of course this should not happens because this means Orange emails servers 
> are not SMTP compiant. The RFC 822bis section 2.3 says end of line MUST be 
> CR+LF.
> Next version of Dolibarr will add a warning to say that all people hosted by 
> Orange may not received correctly emails when using the native php mail 
> function.
> A solution to solve problem is to use the other email sending method. This 
> does not means that the first one (PHP native) is bugged but just that 
> information into header are not in same order and when order change, the bug 
> at Orange platform is not triggered. Because problem is at Orange, there is 
> no way to fix the method 1 by modifying Dolibarr.
> So if your need to send emails from Dolibarr, use the method 2 if you don't 
> want to experience problems with Orange customers.
> Also if you know some people that are not at Orange but that have same 
> problems when receiving emails, let us know. Goal is to know if Orange is the 
> only provider with a bugged email platform or if other internet provider have 
> same problem...
> -- 
> Eldy (Laurent Destailleur).
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