ISP blocking port 25, how to send mail from Iseries

["Art Tostaine, Jr." <atostaine@xxxxxxxxx>]

We used to send emails using our AS/400 SMTP server.  Now, Cablevision
in NJ blocking port 25 (Comcast did this 2 weeks ago)

We use another ISP to host our web server and email server, and in
outlook, we had to change to port 587 to reach the smtp server from
outlook.

So, is there a way to change the AS/400 to use that mail router?  I
was thinking of putting mail1.myisp.com:587, but I might need to use
Pop3 authentication before sending.

Anyone else doing this?

-- 
Art Tostaine (GMAIL)
CCA, Inc.
Jackson, NJ 08527