You are correct Rich,
What TDP does is only tell Exchange that the backup is done successfully and 
Exchange can clean the logs when it need it.
TSM for Mail has nothing to do with the logs anymore as it was before.

Thanks
Christian

________________________________________
Från: ADSM: Dist Stor Manager [ADSM-L AT VM.MARIST DOT EDU] för Richard 
Sims [rbs AT BU DOT EDU]
Skickat: den 29 juli 2008 03:26
Till: ADSM-L AT VM.MARIST DOT EDU
Ämne: Re: Exchange 2007

On Jul 28, 2008, at 5:38 PM, Ochs, Duane wrote:

> I'm running backups using TDP for MAIL - Exchange 5.5.1
> Running fulls daily. And the trans logs are not being deleted.
>
> No errors. No failures. The documentations indicates that Exchange is
> supposed to perform this maintenance upon completion of a full backup.
>
> A premiere call was placed with Microsoft. They state that the backup
> software is supposed to perform the deletion.
>
> Any ideas ?

I think MS left you with a false impression of the processing.  From
what I understand, it is always the Exchange server which performs the
deletion, incited to do so by virtue of a full or incremental online
backup of all the databases in a storage group is performed (circular
logging disabled).  See http://support.microsoft.com/kb/240145 .

See also the FAQ appendix in the TDP manual, question
   "How do the Exchange Server transaction logs get deleted?"
for further insight.

The Exchange log and/or Windows Event Log may have further info on
what transpired.

    Richard Sims