This is a text-only version of the following page on https://raymii.org: --- Title : Ruby script to upload or convert a Maildir Inbox to an IMAP server Author : Thibaut Colar Date : 01-01-2013 URL : https://raymii.org/s/software/Ruby_script_to_upload_or_convert_a_Maildir_Inbox_to_an_IMAP_Server.html Format : Markdown/HTML --- **Note: The original page is often offline, so therefore the script is mirrored here. Credits to the original author: wiki.colar.net/ruby _script_ to _upload_ convert _a_ maildir _inbox_ to _an_ imap_server** I decided to change email server for several reasons, anyway, long story short I was using postfix(qmail before that) and decided to switch to citadel, which is much easier to deal with (simple config).

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Anyway, Citadel use it's own format for emails (Berkeley DB), so you can't just copy over the existing emails stored in Maildir format (8 years worth !), but since Citadel provides an IMAP server, all I need is a tool that can copy/upload The IMAP folder(s) content to an IMAP server. I thought that would already exist, easy to find, but did not seem to find one. I found one made in PERL, but as usual Perl / CPAN failed me completely :( I found another one that was really bare bone but usable here: http://www.robsayers.com/computing/MaildirToImap.html It's quite compact and easy to use, tanks to ruby, but it was kinda hard coded to copy just the Inbox folder ... in my case I had many subfolders (Sent, archives and so on) that I wanted to copy as well, so I modified it a little to make it "parameterizable", so i could run it against other sub folders of my choice. Usage * Prerequisite: You need a ruby install (`apt-get install ruby`) * Save the script (scroll down) to your machine (MaildirToImap.rb) * Edit the script ans set the variables IMAP _HOST, IMAP_ USER, and IMAP_PASS to correct values. * Use the script with 2 params(absolute directory of a Maildir Inbox, IMAP box name), see examples: Example: Copy the Inbox ruby MaildirToImap.rb /home/tcolar/Maildir/cur/ INBOX Example: Copy an Inbox sub-folder (ex: 'Sent') ruby MaildirToImap.rb /home/tcolar/Maildir/.Sent/cur/ INBOX/Sent Repeat for all the sub-folders you want to copy. It takes about 0.5 seconds per email (on a local server), so if you have many emails it can take a while. The script: # Thibaut Colar # http://wiki.colar.net/ # "Upload" a local Maildir folder onto an IMAP server # Inspired by: http://www.robsayers.com/computing/MaildirToImap.html # WARNING: Come with no warranties of any kind whatsoever, use at your own risk ! # # Use, Example: ruby MaildirToImap.rb /home/tcolar/Maildir/cur INBOX # Example(sub-box): ruby MaildirToImap.rb /home/tcolar/Maildir/.Sent/cur/ INBOX/Sent #vars - set accordingly IMAP_HOST = 'localhost' IMAP_USER = 'me' IMAP_PASS = 'my_password' TEST_MODE = 0 # Set to 0 to actually do it # program require 'net/imap' def upload_dir(imap, mail_dir, imap_dir) imap.examine(imap_dir) msgs = Dir.entries(mail_dir).each do |f| if !File.directory?(f) then print "Will add ", mail_dir, f, "t to: ", imap_dir, "n" if TEST_MODE == 0 then imap.append(imap_dir,File.open(mail_dir+f).read,[:Seen]) end end end end # Main if ARGV.length < 2 then print "Expecting 2 params: - maildir directory (usually ends with /cur) - IMAP dirn" exit end mail_dir=ARGV[0] imap_dir=ARGV[1] imap = Net::IMAP.new(IMAP_HOST) imap.authenticate('LOGIN', IMAP_USER, IMAP_PASS) begin imap.create(imap_dir) rescue print "Failed creating: ", imap_dir, ", that's probably OKn" end upload_dir(imap, mail_dir, imap_dir) [1]: https://www.digitalocean.com/?refcode=7435ae6b8212 --- License: All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got and place my name and a link to this site with the article as source. This site uses Google Analytics for statistics and Google Adwords for advertisements. You are tracked and Google knows everything about you. Use an adblocker like ublock-origin if you don't want it. All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Just to be clear, the information on this website is for meant for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not 'rm -rf /' as root for example. If you have any questions then do not hesitate to contact me. See https://raymii.org/s/static/About.html for details.