將 Mail Server - IMAP 建立的中文目錄編碼轉回作法

透過 imapsync 移轉 Mail Server 過程, 發現一些使用中文所建立的目錄無法成功移轉, 又不好比對出是那些目錄, 所以找了一下可以如何將編碼轉回的方式.

• 在 imapsync 執行後的 LOG_imapsync 目錄內看到記錄檔最後有出現 Err Exp.

  :
  :
  Homepage: http://imapsync.lamiral.info/
  ++++ Listing 2 errors encountered during the sync ( avoid this listing with --noerrorsdump ).
  Err 1/2: Could not create folder [from ABC/&ZbBbomI2--DATA/INDIA/JonathanTest.] from [from ABC/&ZbBbomI2--DATA/INDIA/JonathanTest.]: 38252 NO [CANNOT] Character not allowed in mailbox name: '.' (0.001 + 0.000 secs).
  Err 2/2: Could not create folder [from ABC/&ZbBbomI2--DATA/Vietnam/TrysoftTest] from [from ABC/&ZbBbomI2--DATA/Vietnam/TrysoftTest]: 38949 NO [CANNOT] Character not allowed in mailbox name: '.' (0.001 + 0.000 secs).
  Exiting with return value 111
  Log file is LOG_imapsync/2018_08_26_16_21_49_try.txt ( to change it, use --logfile filepath ; or use --nolog to turn off logging )

• 出現了兩個目錄異常
  1. [from ABC/&ZbBbomI2–DATA/INDIA/JonathanTest.]
  2. [from ABC/&ZbBbomI2–DATA/Vietnam/TrysoftTest]

• yum install https://www.rpmfind.net/linux/dag/redhat/el6/en/x86_64/dag/RPMS/perl-Unicode-IMAPUtf7-2.00-1.el6.rf.noarch.rpm

• test.pl

  #!/usr/bin/perl
  use Unicode::IMAPUtf7;
   
  my $IMAPUtf7 = Unicode::IMAPUtf7->new();
   
  $encode = '[from ABC/&ZbBbomI2--DATA/INDIA/JonathanTest.] [from ABC/&ZbBbomI2--DATA/Vietnam/TrysoftTest]';
  $decode = $IMAPUtf7->decode($encode);
  print("[$decode]\n");

  root@ct-centos6 ~]# perl test.pl
  [[from ABC/新客戶-DATA/INDIA/JonathanTest.] [from ABC/新客戶-DATA/Vietnam/TrysoftTest]]
  [root@ct-centos6 ~]#

• http://tyruan.blogspot.com/2013/11/outlook-imap.html
• https://www.rpmfind.net/linux/rpm2html/search.php?query=perl(Unicode%3A%3AIMAPUtf7)