Author Topic: Roundcube 1.4-beta bad mail header in Sent mailbox when sending big attachment  (Read 282 times)

Offline Dunstan

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I'm testing the Roundcube 1.4-beta, and a strange behaviour occurs when I send an email with a large (in my test it was 10MB) attachment. The mail is sent ok, but the Sent mailbox doesn't show the attachment in the message list, and if I try to open the mail, the following text is displayed: The message part is too big to process it. Download

The cause of this is that in the Sent mailbox, the message is saved with the following bad header:
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

instead of:
Content-Type: multipart/mixed;

I have tested the latest stable Roundcube version (1.3), and other IMAP mail program (Thunderbird) on the same IMAP-server, and the error occurs only when using Roundcube 1.4-beta. Messages with attachments greater than 4MB are affected, below 4MB everything seems to be normal.

Can somebody confirm this behaviour? If this is a configuration error on my behalf, please help!

« Last Edit: September 05, 2018, 07:35:37 AM by Dunstan »