Why do I get a relaying denied error, SMTP Authentication, Can deliver mail error?
Our system is designed to work with SMTP authentication (enabling instructions below). We do however have a backup system that may take up to one minute to enable mail delivery without SMTP authentication causing the ‘Relaying Denied’ error. Subsequent attempts should result in successful mail delivery. To enable SMTP authentication on Outlook Express: 1. Open Outlook Express 2. Select ‘Tools’ from the menu bar 3. Click on ‘Accounts’ from the drop down menu 4. High-light desired email account from list 5. Select ‘Properties’ 6. Select the ‘Servers’ tab 7. Check ‘My Server Requires Authentication’ below ‘Outgoing Mail Server’ Some ISP’s block the default outgoing SMTP port 25 traffic to all machines except their own mail servers. If you get errors trying to send mail via “mail.yourdomainname.com” – try changing your SMTP port from 25 to 1025. We have setup port 1025 as an alternative SMTP port that should be available from all ISP’s. Usually this setting is available in the advanced SMT
