Our mail server authenticates you through your pop/imap account. So when you check your email, our mail server authenticates your pop user and password, captures that IP that you are checking your email from, and adds that IP to our relay list. This list is flushed every 10-15 minutes. This means, if you try to send email after the relay list has been flushed and before you have attempted to check your email, you will receive this error.
Follow one of the potential "fix"instructions below:
- Re-authenticate on our server. Remove any email from your Outbox. If you need to keep the message, you can move it to your 'Drafts' folder. Click "Send/Receive". This will re-authenticate you. Try resending the email.
- Configure your email client to check for email before sending. In Outlook, go to "Tools" and select "Email Accounts". Make sure "View or change existing e-mail accounts" is checked. Click Next. Select your account from the list and click "Change". Select "More Settings". Select "Outgoing Server". Check "My outgoing server (SMTP) requires authentication". Select "Log on to incoming mail server before sending mail". Click "OK", then "Next", then "Finish".
