Running 15.5. ONE user started to receive those weird messages from Smartermail on Sunday:
Subject: Message removed
A message has been removed from this mailbox by an entity other than this program, probably by a virus scanner.
This message is a replacement for the missing message.
And it has happened every day since then up until yesterday. We double check that the on demand OS virus scanner was excluding the folder.
After that (yesterday), it seemed OK. Today the user emails me and says he hasn't received email in an hour an a half which is very strange. I check the delivery logs and I see messages coming in, but in the IMAP and POP logs, I don't see messages being read/retrieved. I then indexed his box. Then I checked the indexing log, and stumbled across this for today (prior to my manual index request):
[2018.03.14] 16:20:02 [firstname.lastname@example.org] Error during indexing, invalidating index: System.IO.FileNotFoundException: Could not find file 'c:\SmarterMail\Domains\xxx.com\Users\xxx\Mail\Inbox\2018_3_14.grp'.
[2018.03.14] File name: 'c:\SmarterMail\Domains\xxx.com\Users\xxx\Mail\Inbox\2018_3_14.grp'
[2018.03.14] at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
[2018.03.14] at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
[2018.03.14] at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
[2018.03.14] at MailStore.GroupFileAccess.GroupFile.LoadHeader(GroupFileItem messageBoundary)
[2018.03.14] at MailStore.GroupFileAccess.MimeReader.LoadHeader()
[2018.03.14] at MailStore.GroupFileAccess.MimeReader.get_Header()
[2018.03.14] at MailStore.Indexing.Indexables.IndexableEmail.#Pkb()
[2018.03.14] at MailStore.Indexing.Indexables.IndexableEmail.GetDocument()
[2018.03.14] at MailStore.Indexing.UserIndexer.IndexUser(UserIndexItem userIndexItem, IndexingContext context, String username, String domainName, PendingIndexDeletions pendingDeletions, Log log)
I then went further back to Mar 1 and saw the same thing on 3/11.
No other user in this domain or any other domain on this server is reporting an issue.
This user IMAPs his email on an iPhone then POPs the box from his desktop (if that helps). Appreciate any assistance.