Online Solutions And Innovation, Inc. : Unable to send mail

Common Problems sending mail

The most common problem in sending mail is that your ISP has port 25 blocked going out of their network. They do this to prevent spammers from connecting directly to external webservers and delivering Junk Email. If you have a problem sending mail, but are able to receive mail just fine, then check your SMTP Settings and change the port number to 2500 or 2525.

From Microsoft Outlook...

Select Tools > E-mail Accounts.
At the E-mail Accounts Wizard Dialog Box, select "View or change existing email accounts" and click Next.
Select the email account you wish to modify
Click "More Settings."
1. On the Outgoing Server Tab...
  - Enable the "My outgoing server (SMTP) requires authentication." checkbox
  - Enable the "Use same settings as my incoming mail server" checkbox
2. On the Advanced Tab...
  - Set the "Outgoing server (SMTP)" port to 2525
  - If you want to be able to retrieve previously read email via Outlook Web Access™ from remote locations...
    1. Enable the "Leave a copy of messages on the server" checkbox
    2. Enable the "Remove from server after..." checkbox
    3. Enable the "Remove from server when deleted from 'Deleted Items'" checkbox
Click OK to close this dialog box and Next to complete the setup!

You should now be able to connect to your SMTP Servers on the new port, 2525

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