Am 28.05.2014 17:11, schrieb Daniele Nicolodi: > Hello, > > this question is not strictly related to Postfix but I don't know where > else I may find knowledgeable people to ask about the issue. > > leboncoin.fr is classifieds website and it offers the possibility to > answer insertions through a web form that sends an email to the > insertionist. The form requires to specify the email of the user > answering and it is used as From: for the sent message to allow replies. > > My domain implements SPF, and I have a few reports of emails generated > by the web system and sent to sfr.fr addresses that has been refused by > the receiving system on the base of the SPF record of my domain. > Accidentally, leboncoin.fr uses Postfix as mailer, and this is an > example of the reports generated: > >> This is the mail system at host vmailer19.leboncoin.fr. >> >> I'm sorry to have to inform you that your message could not >> be delivered to one or more recipients. It's attached below. >> >> For further assistance, please send mail to <postmaster> >> >> If you do so, please include this problem report. You can >> delete your own text from the attached returned message. >> >> The mail system >> >> <ndiberna...@neuf.fr>: host smtp-in.neuf.fr[93.17.128.86] said: 554 5.7.1 >> <dani...@grinta.net>: Sender address rejected: >> >> Please%see%http://spf.pobox.com/why.html?sender=daniele%40grinta.net&ip=193.164.196.119&receiver=msfrf2411 >> : Reason: mechanism (in reply to MAIL FROM command) >> >> >> >> Reporting-MTA: dns; vmailer19.leboncoin.fr >> X-Postfix-Queue-ID: 5C8B0B8D55 >> X-Postfix-Sender: rfc822; dani...@grinta.net >> Arrival-Date: Wed, 28 May 2014 16:02:28 +0200 (CEST) >> >> Final-Recipient: rfc822; ndiberna...@neuf.fr >> Original-Recipient: rfc822;ndiberna...@neuf.fr >> Action: failed >> Status: 5.7.1 >> Remote-MTA: dns; smtp-in.neuf.fr >> Diagnostic-Code: smtp; 554 5.7.1 <dani...@grinta.net>: Sender address >> rejected: >> >> Please%see%http://spf.pobox.com/why.html?sender=daniele%40grinta.net&ip=193.164.196.119&receiver=msfrf2411 >> : Reason: mechanism > > > Is the problem due to leboncoin.fr getting the mail forwarding wrong by > using the wrong envelope sender address, or is sfr.fr getting SPF wrong > by using the From: header sender address to verify SPF? > > There is anything I can do to help those mail to go through correctly? > > Thanks. Best regards, > Daniele >
you may set your SPF Record to ~all SoftFail invest in dkim and dmarc Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
