Fri, 10 Apr 2026 05:31:47 +0000 https://bugs.horde.org/ticket/8092 Use CATENATE extension to strip MIME parts If CATENATE IMAP extension is available, use it to strip MIME parts. From Appendix A of RFC 4469: Example 3: The following example demonstrates how the CATENATE extension can be used to strip attachments. Below, a PowerPoint attachment was replaced by a small text part explaining that the attachment was stripped. C: A003 APPEND Drafts (\Seen \Draft $MDNSent) CATENATE (URL "/Drafts;UIDVALIDITY=385759045/;UID=21/;section=HEADER" TEXT {42} S: + Ready for literal data C: C: --------------030308070208000400050903 C: URL "/Drafts;UIDVALIDITY=385759045/;UID=21/;section=1.MIME" URL "/Drafts;UIDVALIDITY=385759045/;UID=21/;section=1" TEXT {255} S: + Ready for literal data C: C: --------------030308070208000400050903 C: Content-type: text/plain; charset="us-ascii" C: Content-transfer-encoding: 7bit C: C: This body part contained a Power Point presentation that was C: deleted upon your request. C: --------------030308070208000400050903-- C: ) S: A003 OK append Completed Tue, 17 Mar 2009 12:24:47 +0000 https://bugs.horde.org/ticket/8092#t53138 Changes have been made in Git for this ticket: Request #8092: Use CATENATE (RFC 4469) to strip MIME parts Even if IMAP server doesn't support CATENATE, use the same process to build the message data as with CATENATE - by defining the parts on the server using IMAP URLs. http://git.horde.org/diff.php/imp/docs/CHANGES?rt=horde-git&r1=a1d3bb1a9c45b10fb08c741b075aa02da2c8e561&r2=6d09e5a4cff91180789155a863ef6e65d9ff7864 http://git.horde.org/diff.php/imp/docs/RFCS?rt=horde-git&r1=0268b57d8b60efcb8f57929b68669a5c949347d2&r2=6d09e5a4cff91180789155a863ef6e65d9ff7864 http://git.horde.org/diff.php/imp/lib/Message.php?rt=horde-git&r1=b852ce0f8affdeb57cc473ba287b65d16d382fc0&r2=6d09e5a4cff91180789155a863ef6e65d9ff7864 http://git.horde.org/diff.php/imp/message.php?rt=horde-git&r1=e757952b380548678ba622fe18949030296b3c83&r2=6d09e5a4cff91180789155a863ef6e65d9ff7864 Mon, 26 Apr 2010 07:36:25 +0000 https://bugs.horde.org/ticket/8092#t58632