Roundcube Community Forum

Hi,

I'm strugling with quite an unpleasant issue with yahoo mailservers, and they seem to be right this time. I checked the message sent from Roundcube and see that To: and Subject: headers are duplicated.

...
To: "user" <[email protected]>
Subject: Test
X-PHP-Originating-Script: 1014:rcube.php
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="=_2a5b0094597d18722a74778e1c598633"
Date: Mon, 07 Sep 2015 20:02:15 +0200
From: "user2" <[email protected]>
To: "user" <[email protected]>
Subject: Test
Message-ID: <[email protected]>
X-Sender: [email protected]
User-Agent: Roundcube Webmail/1.1.1


Red part is generated by Roundcube (I checked it in Sent), while the green one is added "on-the-fly".

When I'm sending the same message from Outlook using SMTP headers are OK:

From: "user2" <[email protected]>
To: "user2" <[email protected]>
Subject: Test 2
Date: Mon, 7 Sep 2015 20:03:33 +0200
Message-ID: <[email protected]>
MIME-Version: 1.0
Content-Type: multipart/alternative;
   boundary="----=_NextPart_000_006E_01D0E9A8.46DCAFF0"
X-Mailer: Microsoft Outlook 15.0
Thread-Index: AdDpl4CByrL4cN0SQ0W7FqfEi0Cq8A==
Content-Language: ru

SMTP server is Postfix.
Those duplicate headers cause an error:
host mta6.am0.yahoodns.net[66.196.118.36] said: 554
    Message not allowed - Headers are not RFC compliant[291] (in reply to end
    of DATA command)

Would be grateful for any help!

Dimitriy

Try configuring Roundcube to use SMTP instead of PHP mail.

Worked like a charm! Thank you!

What Roundcube version and Mail_mime package version?

User-Agent: Roundcube Webmail/1.1.1
pear/Mail_Mime                                 1.9.0

That explains the issue. For Mail_Mime-1.9.x incoming Roundcube 1.1.3 is required.