On Apr 7, 2008, at 5:49 PM, Chris Maness wrote:
How do I check it? Should I use another IMAP server?
Look at the first few lines; you should see either a placeholder
message like:
From MAILER-DAEMON Mon Apr 7 13:08:13 2008
Date: 07 Apr 2008 13:08:13 -0400
From: Mail System Internal Data <[EMAIL PROTECTED]>
Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA
Message-ID: <[EMAIL PROTECTED]>
X-IMAP: 1143826475 0000000664 NonJunk $NotJunk JunkRecorded $Junk Junk
Status: RO
This text is part of the internal format of your mail folder, and is
not
a real message. It is created automatically by the mail system
software.
If deleted, important folder data will be lost, and it will be re-
created
with the data reset to initial values.
...or a normal message with an X-IMAPbase: header, depending on which
version of UW IMAP you created the mailbox under. If you see binary
gunk (see forwarded message below), you're running into the same issue
I've seen.
Regards,
--
-Chuck
PS: Since the mail below was written, I have seen this corruption
happen with Outlook and Mozilla Tbird, not just with Apple Mail.
Begin forwarded message:
From: Chuck Swiger <[EMAIL PROTECTED]>
Date: January 24, 2008 11:05:50 AM PST
To: [EMAIL PROTECTED]
Subject: [Imap-uw] imap-2007 on Solaris 8, possible mbox data
corruption?
Hi, all--
I've been a happy user of UW imapd for many years, but recently a
number of my users have started really doing a lot of mail access in
parallel from a workstation and something like an iPhone. I'd been
receiving more frequent reports of imapd locking problems with
imapd-2006h (ie, which would be resolved by them quitting and
restarting their MUA or smart phone), and have updated the imapd to
imap-2007 based on the comments in the release notes about the
locking issues which hopefully were resolved with 2006k.
The users have initially reported that their locking problems were
much improved after the update, however, the build of imap-2007 is
now showing signs of a mbox corruption issue which has affected
several users. Specifically, the first line or perhaps first few
lines of their mbox (either /var/mail/$USER, or ~$USER/mail/mbox)
which is normally the SMTP envelope From header, is being corrupted.
Two examples (with apologies for the length):
# head -2 mbox_200801114
@???h?f??x?#~??$??
I??U?#LiLQ?
?{?v?????۟c??"[EMAIL PROTECTED]>
Received: from pi.codefab.com (pi.codefab.com [199.103.21.227])
# head -2 mbox_200801114 | od -h
0000000 1703 0100 4092 9291 0668 9f66 fae3 78df
0000020 237e c0d2 2415 e4f7 0b1e 499d da55 e223
0000040 1f8e 084c 694c 1c51 e00b 9f7b a076 0fbc
0000060 b1be a4e2 93db 9f63 b9b1 226e 46a3 1cc1
0000100 c9c9 6d8e 8f6d 656e 6465 7a40 676d 6169
0000120 6c2e 636f 6d3e 0a52 6563 6569 7665 643a
0000140 2066 726f 6d20 7069 2e63 6f64 6566 6162
0000160 2e63 6f6d 2028 7069 2e63 6f64 6566 6162
0000200 2e63 6f6d 205b 3139 392e 3130 332e 3231
0000220 2e32 3237 5d29 0a00
# head -8 mbox_20080121
?*?D?jZ??????{?ڟ V??ùEy ?u?uG?M?Nl?R???:?hx
Q?R?5???? [EMAIL PROTECTED],?
[EMAIL PROTECTED]
C??a6?v?
fJh
?k?Kp?g??
b
??
?FR_????b?k?啾)???t_?ۆtF2?X??&??>h?z?3??ZNr?Yz=ˬ??9߬??6??4?{?mWCX?
Z2?K??ʩ)?vG??a??}Mi5?Я?9?)?=nUc?,<,?~
:?V
?w<?n????????B?w?????<???>8AB h7???푦X?
??d?d?tQ?bh?\6~rj???~ցa #?y?F??j????o??DA?e4d?z'???
]6 2??=???
%?"??????8???v|??ᄡS?B?( lJp?)^7'???g8?#??F0????ɞ??CP??֣???
Rڗ3?8(?_??X"???Ŧր?E?[?F?K?f뜃?Qq?_ǖ ??咭o?
vBdh????L?1??w???G??
???ZLP???D?E6:?h?ܑNχ?M ???ax?n?x?\?O/ZF3??=??0?[??1cfX??;???`???-?
z_>?E??\?C}??ׂP?\㋃J?~L^??=?ɶ???Y?4rF?\3<?I+DDUP??p??=?ĵD ?K??
FP??dm?|yH??D?E?K
$YS???;F/4x?(e?~$3ʻ䚳=۷nR?.?6
[EMAIL PROTECTED])7,??X?oޞ?T??;?*?6F??)q`????\?´?
&0??'&?zn??H??????9,o?!??EC6??U?( s\H$?h?B?P-7uO7?-Q?/?0?1%1j?
a???????!??!#$?????:??b???????6??B????LS>b?|4:11 -0400 (EDT)
Received: from list.precipice.net ([199.103.21.231])
# head -8 mbox_20080121 | od -h
0000000 1703 0103 e042 3493 4acb baae 3b03 ebab
0000020 9316 0deb 2ac0 4489 6a5a 8a81 e8a7 12af
0000040 0504 8e1b 23a2 8b7b d5da 9f20 56dc d5c3
0000060 b945 1279 1e20 d81f 758a 7547 1a93 1e4d
0000100 bb4e 6ce3 8606 521e d002 86aa 3ad7 6811
0000120 780a 51ab 52e9 358a d5ff f296 09c8 72fc
0000140 cad4 55c7 4e9b 45b4 b9ce b44b b990 d1bc
0000160 d62d 4bc4 cd91 100e 40ab 21ba a2cd f124
0000200 a863 2cf0 0c04 8615 a32d f913 30c1 5a97
0000220 f912 e804 02de 34d6 ef39 c140 b143 dfe6
0000240 610f 3605 db76 d80b 664a 68ca 036b 9c4b
0000260 1970 c667 c73f 0b06 0b09 62af c80a a846
0000300 190e 525f 95a6 9590 62d9 6b3f e595 be29
0000320 b98d e883 745f addb 8674 4632 ef58 86a9
0000340 2680 b33e 68cb 7aaa 3393 eb5a 4e72 138e
0000360 597a 3dcb acac 9d39 02df acba e636 9386
0000400 3499 7bfe 6d57 1143 58ff 5a32 9b4b b39a
0000420 caa9 2987 7647 f3ca 61ff c603 7d4d 6935
0000440 f2d0 afe1 1d39 dd29 d63d 6e55 631b 66eb
0000460 2c01 133c 2cc9 7e0b 3ac8 56a0 773c 966e
0000500 fcfa e280 f0f6 85ab dc42 cc77 edae a0de
0000520 dd3c 8c90 e33e 3841 4209 6837 8ee2 e3ed
0000540 91a6 5885 0acd db0e 64f2 7f64 d11c 7451
0000560 af62 68ce 5c36 7e72 6aae 119b 827e d681
0000600 0161 2023 1dd6 79ed 46bf b76a acf2 d6ea
0000620 9302 6fe9 d944 4117 deba b365 3464 af7a
0000640 1e27 8fa0 ba0b 5d36 0932 fffa 3dc5 dcfb
0000660 25f8 22ed 111a b799 9fca fc38 8d18 8acb
0000700 767c b019 bee1 84a1 53c1 42ba 2809 6c4a
0000720 1070 ad29 5e37 2712 92f9 9b67 38ae 23b8
0000740 fc46 30a2 12cb 00ff 87c9 9ee7 ed43 50a4
0000760 89d6 a3bb 1094 e5bd 52da 9733 8e38 28d3
0001000 5fb8 c906 5822 811e 89d7 c5a6 d680 e345
0001020 8006 5bd3 46c8 044b 01e6 66eb 9c83 f751
0001040 718f 5fc7 9620 87cf e592 ad6f e80b 2076
0001060 4264 68d5 c21c fbda 054c c731 f9ba 7710
0001100 b690 aa47 3fcd 0af0 9705 8edc 5a4c 50ca
0001120 daf3 2208 44e9 4536 3aad 6882 dc91 074e
0001140 cf87 f54d 0992 cfd0 6117 78b4 6e05 c978
0001160 995c 914f 2f5a 4633 acf0 3daf d030 04a1
0001200 1c5b a6bf 3163 6612 5814 9a07 1d9d 3b94
0001220 3f87 609a e9c8 2d8b 7a5f 3ec9 45c5 e75c
0001240 e643 7da6 0306 aed7 8250 b85c e38b 834a
0001260 de7e 104c 5ead 02aa 3ddd c9b6 c7dc de16
0001300 59ca 3472 46c2 5c33 3cfc 492b 0744 1244
0001320 5550 1501 d8dc 70a9 c63d c7c4 b544 0983
0001340 4bf6 ae46 50ad d846 4cbd 7c79 48bb 3f44
0001360 8145 864b 0d64 6d0a 2459 0153 fbab 803b
0001400 462f 3478 c328 65b0 7e24 33ca bbe4 9ab3
0001420 3ddb b712 6e52 1a19 932e d736 0a8f 25b1
0001440 8440 e3b3 f69c 9966 90c2 ddbe f7f1 80bc
0001460 72a7 f1a5 3754 a0ca 37b5 a54f b4e0 7d13
0001500 e788 5b33 1e70 c629 372c 0080 a758 a26f
0001520 de9e dd54 e8ea 1c3b eb2a a436 46aa d429
0001540 7160 bbfa fee7 5c10 dec2 b4aa 2630 85d2
0001560 2726 8d19 127a 6efc ea48 a088 8310 eaf0
0001600 a912 9239 0e2c 056f ba21 baac 4543 36c9
0001620 eea8 55c7 2820 735c 4824 de68 b942 a350
0001640 2d37 754f 37ee 952d 5103 cc2f ed30 8c31
0001660 2531 6af4 1461 fd1d afb4 a2d8 1fc5 c506
0001700 21cb e221 231e 24e0 e6ce eaef 3ade f162
0001720 f5be 8bf5 b09b ea36 eae4 42ba 8a93 f64c
0001740 533e 62b4 7c34 3a31 3120 2d30 3430 3020
0001760 2845 4454 290a 5265 6365 6976 6564 3a20
0002000 6672 6f6d 206c 6973 742e 7072 6563 6970
0002020 6963 652e 6e65 7420 285b 3139 392e 3130
0002040 332e 3231 2e32 3331 5d29 0a00
The mailserver in question is a Sun E450 running Solaris 8 (kernel
rev=Generic_117350-46); imap-2007 was built with "make gso" using
gcc-3.4.6 from the sunfreeware.com SMCgcc package and against
OpenSSL 0.9.8f also from SMCossl; the only change was to set
mailsubdir = "mail". All of the files are on local disks which are
in either a RAID-1 (/var) or RAID-10 (/home) configuration using
DiskSuite; metastat and systems logs are not reporting any disk
issues.
This problem seems to only happen in conjunction with simultaneous
access and has been reported only with Mail.app from MacOS X
10.4/10.5 & either a iPhone/Treo/Blackberry; I have yet to hear of
problems with users running Mozilla Thunderbird or Outlook Express.
Since all access is via 993/imaps, I can't readily tcpdump the
traffic, but I do have some syslogs which correspond to the issue:
Jan 24 13:01:14 pong imapd[24697]: [ID 234311 mail.info] Login
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:01:14 pong imapd[24697]: [ID 960700 mail.info] Logout
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:03:32 pong imapd[24722]: [ID 234311 mail.info] Login
user=xxxxx host=mobile-032-137-230-023.mycingular.net [32.137.230.23]
Jan 24 13:04:06 pong imapd[24722]: [ID 960700 mail.info] Hangup
user=xxxxx host=mobile-032-137-230-023.mycingular.net [32.137.230.23]
Jan 24 13:06:15 pong imapd[25051]: [ID 234311 mail.info] Login
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:06:15 pong imapd[25051]: [ID 960700 mail.info] Logout
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:09:28 pong imapd[24023]: [ID 960700 mail.info] Killed
(terminated) user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:17:24 pong imapd[25829]: [ID 234311 mail.info] Login
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:17:30 pong imapd[25834]: [ID 234311 mail.info] Login
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:17:31 pong imapd[25835]: [ID 234311 mail.info] Login
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:17:36 pong imapd[25834]: [ID 960700 mail.info] Logout
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:18:50 pong imapd[25857]: [ID 234311 mail.info] Login
user=xxxxx host=mobile-032-136-111-035.mycingular.net [32.136.111.35]
Jan 24 13:18:51 pong imapd[25829]: [ID 960700 mail.info] Killed
(lost mailbox lock) user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:18:51 pong imapd[25835]: [ID 960700 mail.info] Unexpected
client disconnect, while reading line user=xxxxx
host=nfw1.codefab.com [199.103.21.225]
Jan 24 13:19:32 pong imapd[25857]: [ID 960700 mail.info] Hangup
user=xxxxx host=mobile-032-136-111-035.mycingular.net [32.136.111.35]
Jan 24 13:22:30 pong imapd[26199]: [ID 234311 mail.info] Login
user=xxxxx host=nfw1.codefab.com [199.103.21.225]
Regards,
--
-Chuck
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