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  • Status: Solved
  • Priority: Medium
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Out of Office Emails dropped by server using BATV

When sending out of office mail from our environment (Exchange 2007, Barracuda, MXLogic) to a client with BATV (Bounce Address Tag Validation) in place, our messages are dropped.  We are the only organization experiencing this issue when sending out of office messages.

Is there a configuration change that needs to be made in our environment to accommodation BATV environments?

Is there a change that needs to be made on the BATV implementation to allow our OOO to pass?

1 Solution
BATV (Bounce Address Tag Validation) can also cause an NDR and Out of Office replies to not be recieved.

BATV will drop an NDR or Out of Office reply if the mail from address is a NULL value.

Note: Exchange settings prevent an NDR or a Out of Office reply from using the original recipients email address in the mail from field and will alter to a NULL value if it is destined for outside of the local network.

The only fix's for this and to be able to get NDR's or Out of Office replies would be to either alter the default behavior of the Email Server or to turn off BATV.

If BATV is turned off and you still do not get any NDR's or Out of office replies then it may be possible that an internal MX and A record does not exist on your internal DNS server for your own domain.

The MTA does MX record routing, so when an NDR is generated by the local outbound MTA to the original sender the MX lookup returns the public IP address to route to.


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