Hi,I can't send/receive attachments .. not with Outlook, not extern or with OWA.The only error I could find is:#550 5.2.0 STOREDRV.Deliver: The Microsoft Exchange Information Store service reported an error. The following information should help identify the cause of this error: "MapiExceptionNotFound:16.18969:9F000000, 17.27161:000000006C000000000000000000000000000000, 255.23226:666F3A20, 255.27962:07000000, 255.17082:0F010480, 0.26465:56000000, 4.21921:0F010480, 255.27962:FA000000, 255.1494:00000000, 255.26426:07000000, 4.9780:BFF9FFFF, 4.14900:0F010480, 4.1989:0F010480, 4.1917:0F010480, 255.1750:382D3131, 0.26849:31383A32, 255.21817:0F010480, 0.20385:00000000, 4.28577:0F010480, 0.32001:666F3A20, 4.29953:0F010480". ##rfc822;xxxx@xxxx.xxOWA tells me on sending, that the element could not be found.Receiving mails without attachment is no prblem.My environment:Windows SRV2003 64 BITExchange 2007 mit SP1 und RU4AV: esetCould someone help me, please?Greetings,Bjrn

hi,need help!!Greetings,Bjoern

Hi Bjoern, Are there many event errors regarding MSExchangeIS mailbox store? Just like 9774 event? Please try to create a new storage group and create 2 users on it. Then test with new accounts again. If the issue doesnt occur, the root cause can be the corrupted database file. You may need to run isinteg to fix this or move the mailboxes to the new store. Last thing should be noticed, please never run File-Based Antivirus Software scanning against the program and database files of an Exchange computer. Exchange and antivirus software http://support.microsoft.com/kb/328841 Hope this helps. Thanks, Elvis

Excellent response Elvis. The key here is isolating the problem with the database. In most of the cases AV program is found as culprit and setting proper exclusions helps. BTW do we have any errors in the Application logs about the errors you are getting.

hi,I solved the problem with a batchjob which fixed the DB the whole night.Thx for helping.Greeting,Bjrn