No NDR for messages exceeding size limit

[TravTrav]

Hello All,

When users from external domains send messages that exceed our size limitations, they do not receive an NDR. Obviously this poses a problem since neither side knows that the message failed. I believe I remember reading somewhere that the sending server handles NDRs for message size limits...can anyone confirm that and elaborate, or if that is not the case, give me a little guidance on why these may not be working?

Thanks Much,
Travis

 

[pdtit]

Travis,

By default, no NDR and also the Out of Office replies are sent to the outside world.

If you want this, modify the following properties:

From Exchange system manager / Global Settings / Internet Message Formats / Advanced Tab /

select allow Out of Office responses
select allow non-delivery reports

One remark though...
If you get spammed to non-existing email addresses, your exchange server will try to reply with an NDR to this spam address as well (mostly non-existing), which could have your queues being filled up with badmails. Have a tight look at your queues than to see if there are some bogus domains. It's oke to remove the mails in these queues.

Regards,

Peter

 

[TravTrav]

These settings were already enabled, but I am still having no luck. Any other ideas?

 

[Zelandakh]

are you running anti spam software and if so, which one?

 

[TravTrav]

Yes, Im running Surf-Control email filter seperate of exchange with it functioning as our SMTP gateways, however it is not filtering any outbound mail, only inbound.