Error 554 Relay rejected for policy reasons - mixed domains

Having trouble with outbound SMTP mail “Error 554 Relay rejected for policy reasons.”

We have a legacy Domino 6 hub server (Hub1) sending SMTP mail to the internet. This same server is on a seperate network domain as well.

We have a new 8.5 Domino hub server (NewHub) cross certified with the Domino 6 hub server. I am able to send mail to the internet from a mail client on the 8.5 server.

There is also another new 8.5 Domino server (Server2) that was created from the 8.5 Domino hub server. I am able to replicate betweeen the servers and they share the same address book.

When I try to send outbound internet mail from Server2, getting

The log shows:

SMTP Server [0960:0011-07D8] Attempt to relay mail to Me@xyz.com rejected for policy reasons. Relays to recipient’s domain denied in your configuration.

The Delivery Error rreport when doing a mail trace shows:

Error transferring to Hub1/domino6; SMTP Protocol Returned a Permanent Error 554 Relay rejected for policy reasons.

Both NewHub and Server2 SMTP Inbound Controls | Inbound Relay Control settings are “blank.”

On the Domino 6 hub server (Hub1) the Inbound Relay Control settings are all blank Except for

“Deny messages to be sent to the following external internet domains: (* means all)” is set to “*”

Hub1’s setting " Allow messages only from the following internet hosts to be sent to external internet domains: " is set to blank.

We do have a Global Domain Document set on the 8.5 Domino hub server (NewHub.) The “restrictions” tab setting “Domino domains and aliases:” is set to: domino6. It does not contain the domino85 domain but I don’t think it would need it.

The legacy Domino 6 hub server (Hub1)has a Global Domain Document as well. The “restrictions” tab setting “Domino domains and aliases:” is set to: domino6. It does not contain the domino85 domain either.

What I do not understand is why I can send internet mail out from the NewHub server thru the Hub1 server (acting as our gateway) but cannot when sending mail from my mail file on second 8.5 server (Server2.)

I am able to receive internet mail to eiher of the version 8.5 servers. We do get the same error from external programs in the new network domain trying to relay email. Is there a reason as to why a second cascaded server would be rejected while the parent server is not ?

Subject: Resolved work around

Just in case this helps someone else in a mixed migration environment.

Reloading the SMTP tables and then the Router tables showed a smal line indicating that the Server2 domain could not find an MX record for the legacy Hub1 server. Since this is a new network domain we added the MX record. Got rid of the console error. However, the Legacy Hub1 server rejects external host. Instead of disturbing the production legacy server config with an external host name on SMTP Inbound controls, decided on a different approach.

Server2’s configuration had (Router/SMTP Basics) disabled “SMTP used when sending messages outside the local Internet Domain.” Then relad the SMTP table and Router. Messages were able to flow using the FOreign SMTP Domain doc and SMTP Connection doc to the 8.5 HubServer. From here , the HubServer has he SMTP connection to the provider’s relay.