On 18/03/2021 16.52, Steven Varco wrote: > I would like such a feature too, but instead of deleting the atatchment files, I would like to „detach“ the files and save them into a sperate directory, which could be on a different storage like a share in the users home directory or even S3 and then replace the attachment in the Mail with a LINK to that file. > Thunderbird does this quite well with its „Detach Attachment“ feature; the MIME part looks like this after that:
I'm familiar with the Thunderbird implementation. I'd like it if the attachment name was preserved in there too. Saving it to a directory would be nice, but not require for my needs. > I know that for MS Exchange / Outlook some external archiving solutions as components do exist and looking for something similar to offload attachments with dovecot. :) I forgot to mention before, the ImapSize utility, which will help for single accounts, for which the login and password are known. https://broobles.com/imapsize/ But what I'm really looking for is something that I can script on a server. I'll let you know what I come up with. P. On Thu, Mar 18, 2021 at 4:53 PM Steven Varco <dovecot....@bbs.varco.ch> wrote: > I would like such a feature too, but instead of deleting the atatchment > files, I would like to „detach“ the files and save them into a sperate > directory, which could be on a different storage like a share in the users > home directory or even S3 and then replace the attachment in the Mail with > a LINK to that file. > Thunderbird does this quite well with its „Detach Attachment“ feature; the > MIME part looks like this after that: > > ———————————————————————————————————————— > Content-Type: image/png; > name="funny-picture.png" > Content-Disposition: attachment; filename="funny-picture.png" > X-Mozilla-External-Attachment-URL: > file://///fileserver/home/svarco/mail/attachments/funny-picture.png > X-Mozilla-Altered: AttachmentDetached; date="Thu Mar 18 09:44:37 2021" > > You deleted an attachment from this message. The original MIME headers for > the attachment were: > Content-Transfer-Encoding: base64 > Content-Disposition: inline; > filename=funny-picture.png > Content-Type: image/png; > name="funny-picture.png" > ———————————————————————————————————————— > > I know that for MS Exchange / Outlook some external archiving solutions as > components do exist and looking for something similar to offload > attachments with dovecot. :) > > Steven > > -- > https://steven.varco.ch/ > > > Am 18.03.2021 um 08:31 schrieb Plutocrat <plutoc...@gmail.com>: > > > > Hi, > > > > I've been looking around for a solution to this problem. I want to prune > down the attachments on a server before a migration. Some of the emails are > 7 years old and have 40Mb attachments, so this seems like a good > opportunity to rationalize things. So perhaps I'd like to "Remove all > attachments from emails older than 2 years, in the .Sent directory", or > "Attachments over 10Mb anywhere in the mail tree" > > > > I've found the strip_attachments.pl script here < > https://fossies.org/linux/Mail-Box/examples/strip-attachments.pl> which > works fine on mbox (as tested on my local Thunderbird mboxes), but not on > maildir which is on the dovecot server. My Perl isn't strong enough to > re-purpose it. > > > > I've looked at ripmime and mpack/munpack, and although they seem like > useful tools to do the job of deconstructing the mail into its constituent > parts, it doesn't seem to help in re-building the email. I think they could > be used with a bit of study into mail MIME structure, and used with a > helper script. > > > > So before I take a deep dive into scripting my own solution, I just > wanted to check if anyone else on the list has been through this and has > some resources or pointers they can share, or maybe even someone to tell me > "Duh, you can do it with doveadm of course". > > > > P. > >
