10

我正在更改主机，我需要将旧服务器上的 maildir 帐户转换为新服务器上的 mbox。

关于最好的方法的任何想法？

我找到了这个：

for i in new/* cur/*;do formail <”$i” >> ../mbox;done

但我真的不明白。我对 linux 有基本的了解，并且可以通过 ssh 对我的服务器进行 root 访问。

大多数 Maildir 文件夹具有以下内容：

cur
new
tmp
dovecot.index.log
dovecot-uidlist
dovecot.index
dovecot.index.log.2
dovecot.index.cache
dovecot-keywords
订阅

我需要所有这些还是可以忽略 dovecot 文件？

任何建议将不胜感激。

C

4

2 回答 2

29

如果需要在不设置邮件服务器的情况下将maildir账户转换为邮箱账户，可以使用python的邮箱库。如果有一个要转换的 maildir 文件夹，可以使用这里找到的这个小的（10 行+注释）python脚本。如果有子文件夹，则需要探索子文件夹结构，这两种格式是不同的。这给出了以下脚本：

#!/usr/bin/env python 
# -*- coding: utf-8 -*-
"""
Frédéric Grosshans, 19 January 2012
Nathan R. Yergler, 6 June 2010

This file does not contain sufficient creative expression to invoke
assertion of copyright. No warranty is expressed or implied; use at
your own risk.

---

Uses Python's included mailbox library to convert mail archives from
maildir [http://en.wikipedia.org/wiki/Maildir] to 
mbox [http://en.wikipedia.org/wiki/Mbox] format, icluding subfolder.

See http://docs.python.org/library/mailbox.html#mailbox.Mailbox for 
full documentation on this library.

---

To run, save as md2mb.py and run:

$ python md2mb.py [maildir_path] [mbox_filename]

[maildir_path] should be the the path to the actual maildir (containing new, 
cur, tmp, and the subfolders, which are hidden directories with names like 
.subfolde.subsubfolder.subsubsbfolder);

[mbox_filename] will be newly created, as well as a [mbox_filename].sbd the 
directory.
"""

import mailbox
import sys
import email
import os

def maildir2mailbox(maildirname, mboxfilename):
    """
    slightly adapted from maildir2mbox.py, 
    Nathan R. Yergler, 6 June 2010
    http://yergler.net/blog/2010/06/06/batteries-included-or-maildir-to-mbox-again/


    """
    # open the existing maildir and the target mbox file
    maildir = mailbox.Maildir(maildirname, email.message_from_file)
    mbox = mailbox.mbox(mboxfilename)

    # lock the mbox
    mbox.lock()

    # iterate over messages in the maildir and add to the mbox
    for msg in maildir:
        mbox.add(msg)

    # close and unlock
    mbox.close()
    maildir.close()

#Creates the main mailbox
dirname=sys.argv[-2]
mboxname=sys.argv[-1]
print(dirname +' -> ' +mboxname)
mboxdirname=mboxname+'.sbd'
maildir2mailbox(dirname,mboxname)
if not os.path.exists(mboxdirname): os.makedirs(mboxdirname)

listofdirs=[dn for dn in os.walk(dirname).next()[1] if dn not in ['new', 'cur', 'tmp']]
for curfold in listofdirs:
    curlist=[mboxname]+curfold.split('.')
    curpath=os.path.join(*[dn+'.sbd' for dn in curlist if dn])
    if not os.path.exists(curpath): os.makedirs(curpath)
    print('| ' +curfold +' -> '+curpath[:-4])
    maildir2mailbox(os.path.join(dirname,curfold),curpath[:-4])

print('Done')
于 2012-01-19T17:01:22.193 回答
4

如果您可以通过 imap 访问两台服务器（或可以临时安排），您可能需要考虑使用 imapsync 工具，例如：

http://freshmeat.net/projects/imapsync/

如果这不起作用，您应该能够忽略 dovecot 文件，但请注意，您可能会丢失诸如已读取哪些消息以及在消息上设置的任何标志之类的信息。（ imapsync 方法将保留所有这些内容。）

于 2010-03-25T06:21:41.803 回答