SMTP Settings - Hosted Exchange

Hello All.

We are in the process of moving from internally hosting our email on Exchange to a hosted Exchange setup. We have various applications that do need to send email through a relay and the new mail provider has set one up for us with a user and password to be used for authentication to relaying.

Other applications I've switched to this setup are working OK but I can't seem to get our System i to send through it properly.

To start simple, I'll say that when I have our internal (still up and running) Exchange server set up as the Forwarding Mailhub Server (FWDHUBSVR), everything works just fine.

I change the Mailhub value to the external provider's address and mail does not send. Here are some things I have checked or done.

I did check that the DNS name for the external provider does resolve to an IP properly.

Because we must authenticate to the new relay server (internal one did not need that), I did also use ADDSMTPLE with List Type *HOSTAUTH to specify a logon to the external provider's server.

I thought that's all I needed to do, but if I did, then I would not need to be emailing all of you for help :)

With the configuration set to the outside provider and trying SNDDST, I dumped the SMTP journal to a file and that looks like this:

87 CLNT(UNDELV) TO QTMSINQ
7A QTMSINQ TO BRSR
7P CRT UNDEL NOTICE OR DSN
7H BRSR TO MSF
71 O @
72 R <QTCP@QTCP>

7G MSGID MAP TO ID 062C97R1504161346230000000130
P2 R QTCP@QTCP

I'm hoping someone may have some expertise to lend me on this setup.

Thanks much!