Relay and spread external email from iSeries

Currently, all email from our iSeries is relayed through single Exchange server, then sent, forwarded.

Change SMTP Attributes (CHGSMTPA)
Forwarding mailhub server . . . 'PSIEXCHHUB01.PENCOR.COM' Primary
Mail router . . . . . . . . . . 'PSIEXCHHUB02.PENCOR.COM' Backup

There is a current issue if a large amount of mail is sent, some email providers hold or "blacklist" some of this mail.

We are looking for various solutions to spread relay this mail to either multiple servers or multiple ports.

1) We do NOT wish the I5 to be the mail server.
2) Can more than one relay be defined?
3) What are the options?
4) Other 3rd party solutions?

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx
http://www.pencor.com/