Exchange 2007 - EventID 6 & 7 - MSExchange Web Services

[dobsonl]

Hi All,

 

We are getting the following errors appearing on our exchange 2007 box that is running on windows 2008.

 

Log Name:      Application
Source:        MSExchange Web Services
Date:          24/02/2012 09:47:33
Event ID:      6
Task Category: Core
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      SGS-SR-EXCH.stgeorge.internal
Description:
Unable to send a notification for subscription HQBzZ3Mtc3ItZXhjaC5zdGdlb3JnZS5pbnRlcm5hbBAAAABRD8lvTuOARq4rv4NUT3PY. (Send attempts: 6) 

Log Name:      Application
Source:        MSExchange Web Services
Date:          24/02/2012 10:36:15
Event ID:      7
Task Category: Core
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      SGS-SR-EXCH.stgeorge.internal
Description:
After 8 unsuccessful attempts to send a notification for subscription HQBzZ3Mtc3ItZXhjaC5zdGdlb3JnZS5pbnRlcm5hbBAAAABRD8lvTuOARq4rv4NUT3PY, subscription has been removed.

 

Has anybody else seen or resolved these errors, or got any idea on how we could resolve this?

 

Thanks in advance.

Luke

[sukh]

1. I assume you're on at least SP3 RU6? If not deploy as some of these are fixed there.

2. Generally these occur if you;re using BlackBerry/BES, Entourage or UM? Which uses EWS. Do you ?