Relay Help!!

[ndrone1]

I am setting up the community edition server on a CentOS 5 virtual machine. I am encountering a short-term problem when sending out mail. My ISP blocks port 25 inbound and outbound. I have purchased mail relay from DYNDNS and used it in the past already, but as I'm switching from Exchange to Scalix, I'm having issues authenticating via DYNDNS and setting up my sendmail. Add on top of that that I'm certainly not a Linux pro and I'm quite confused. I have read many many posts on the topic, but there are no definitive answers out there. Can someone give me some step by step instructions on how to set up my outbound mail to go through an authentication using mailhop through DYNDNS?

Thanks for every single letter of help!

Nate

Keywords: SMTP, MTA, DYNDNS, MAILHOP, OUTBOUND, SENDMAIL, POSTFIX