Re: Queue Folder

Hi Dave,

The Queue folder is for emails waiting for delivery. The reason why some
emails disappear from it almost immediately and others stay there for a long
time is that some emails can be delivered immediately while others cannot
be, e.g. because the recipient's mail exchanger does not respond or
temporarily rejects the email. The undeliverable emails will land in the
Badmail folder after the expiration, which can be configured in IIS.

I am not sure you cannot delete these files, but you can check which process
locks the file using the WhoLockMe shell extension or Process Explorer from
SysInternals.

You may want to implement some tool which rejects the non-existent
recipients on protocol level. This has the advantage that no NDR is
generated on your server, so your server does not try to deliver an NDR to
the sender, which, in most cases, does not exist (and Badmail/Queue is
filling up due to the undeliverable NDRs).

Peter Karsai
http://www.vamsoft.com/orf


"Dave Mc" <DaveMc@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:6A6EC8A3-E351-48FB-AA8C-DF7C8CF80C17@xxxxxxxxxxxxxxxx
> Not using Exchange, just POP3 and SMTP.
>
> I don't quite get what all the "queue" folder under mailroot is used for.
> Some files stay in it a short amount of time (ones waiting to be sent, I
> assume), some forever. The ones which never clear seem to be Delivery
Status
> Notifications (Failure).
> Example:
>
> To: xyz@xxxxxxx
> Subj: Delivery Status Notification (Failure)
> Date: XXXXXXXX
>
> The body says: This is an automatically generated DSN.
>
> Delivery to the following recipients failed.
>
> jsmith@xxxxxxxxxxxx
>
> Some of these, I can't delete because it says they are in use by someone.
> Some of them seem to "hang" my anti-virus real time scanner (CA) and cause
it
> to use up 99% of my cpu cycles. This is a lightly used server. Should I
> just stop the services at night and delete files or what ??


.

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