Hi all,
I have a support ticket open for this (case 01747918) which resulted in a bug being opened (ZBUG-4613). I'm wondering if anyone else is experiencing the same problem....
I'm seeing several IMAP users uploading large amounts of data, exceeding their quota limits. Repeated uploads of the same emails (duplicate message id's) which does not increase their reported mailbox size but does increase actual storage consumed on disk. In the worst case, I have a user with a 30GB quota, 24GB reported quota usage, consuming 600GB of storage.
All of the occurrences I've seen, the email client has been New Outlook. However, it's only a few users so that might be unrelated.
If I search for the top repeat occurrences of the same message ID being added by an IMAP client, I see emails with many thousands of uploads:
If I then search for the top entry in this list, I see it's the same user uploading it over and over (I had to redact the username and IP below):
The users reported quota usage is ok but the actual disk space consumed by this user far exceeds their quota.
The Zimbra version is 10.0.12. It was also occurring on 10.0.10.
Is anyone else experiencing this problem?
Thanks,
I have a support ticket open for this (case 01747918) which resulted in a bug being opened (ZBUG-4613). I'm wondering if anyone else is experiencing the same problem....
I'm seeing several IMAP users uploading large amounts of data, exceeding their quota limits. Repeated uploads of the same emails (duplicate message id's) which does not increase their reported mailbox size but does increase actual storage consumed on disk. In the worst case, I have a user with a 30GB quota, 24GB reported quota usage, consuming 600GB of storage.
All of the occurrences I've seen, the email client has been New Outlook. However, it's only a few users so that might be unrelated.
If I search for the top repeat occurrences of the same message ID being added by an IMAP client, I see emails with many thousands of uploads:
Code:
$ grep "mailop - Adding Message:" /opt/zimbra/log/mailbox.log | grep "ImapSSLServer" | grep ', Message-ID=' | awk -F ', Message-ID=' '{print $2}' | awk '{print $1}' | sort | uniq -c | sort -nr | head -n 10 14783 <01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com>, 4385 <CAB+tdd=+TfupKG=3c+z-=gYJpzouW8FN826B2FhvOKgksT_J5Q@mail.gmail.com>, 2763 <CANOjgt5OXy=wsTv4dOqerC9AxekYgO_O6BAqcRpHig@mail.gmail.com>, 2551 <DB7PR05MB5738EFF32FC94CA949F78C6PR05MB5738.eurprd05.prod.outlook.com>, 2341 <CWXP265MB37516E2283DB34E58BD31BCXP265MB3751.GBRP265.PROD.OUTLOOK.COM>, 2193 <f4488561080440a9aee6d4f7ca4babc9123MB2438.GBRP123.PROD.OUTLOOK.COM>, 2193 <CAB+BJom-DjHVVo2f4iAmXEksCgPvtg50hC20XARZvpQ@mail.gmail.com>, 2192 <LO3P123MB3162DAF07B678C33939F102@LO3PMB3162.GBRP123.PROD.OUTLOOK.COM>, 1887 <DB7PR05MB5738FC539745C56053D260A4F@DB7PB5738.eurprd05.prod.outlook.com>, 1754 <CWXP265MB3671C178899F1BDEA102@CWXMB3671.GBR265.PROD.OUTLOOK.COM>,Code:
$ grep '01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com' /opt/zimbra/log/mailbox.log2025-01-07 12:33:21,112 INFO [ImapSSLServer-31] [name=<snip>(nginx/1.24.0);ua=Microsoft Outlook/16.0.16026.20146;cid=1074452;] mailop - Adding Message: id=4492816, Message-ID=<01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com>, parentId=4472817, folderId=2, folderName=Inbox acct=11951a74-db8f-4384-9970-6b14981eb952.2025-01-07 12:33:22,099 INFO [ImapSSLServer-2] [name=<snip>(nginx/1.24.0);ua=Microsoft Outlook/16.0.16026.20146;cid=1074452;] mailop - Adding Message: id=4492817, Message-ID=<01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com>, parentId=4472817, folderId=2, folderName=Inbox acct=11951a74-db8f-4384-9970-6b14981eb952.2025-01-07 12:33:23,740 INFO [ImapSSLServer-49] [name=<snip>(nginx/1.24.0);ua=Microsoft Outlook/16.0.16026.20146;cid=1074452;] mailop - Adding Message: id=4492818, Message-ID=<01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com>, parentId=4472817, folderId=2, folderName=Inbox acct=11951a74-db8f-4384-9970-6b14981eb952.2025-01-07 12:33:25,378 INFO [ImapSSLServer-18] [name=<snip>(nginx/1.24.0);ua=Microsoft Outlook/16.0.16026.20146;cid=1074452;] mailop - Adding Message: id=4492819, Message-ID=<01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com>, parentId=4472817, folderId=2, folderName=Inbox acct=11951a74-db8f-4384-9970-6b14981eb952.2025-01-07 12:33:27,095 INFO [ImapSSLServer-19] [name=<snip>(nginx/1.24.0);ua=Microsoft Outlook/16.0.16026.20146;cid=1074452;] mailop - Adding Message: id=4492820, Message-ID=<01020193b595c050-365e541e-8bde-000000@eu-west-1.amazonses.com>, parentId=4472817, folderId=2, folderName=Inbox acct=11951a74-db8f-4384-9970-6b14981eb952.The Zimbra version is 10.0.12. It was also occurring on 10.0.10.
Is anyone else experiencing this problem?
Thanks,
Statistics: Posted by Matt — Wed Jan 08, 2025 10:29 am