How do I change the SMTP port to 587? Print

If your ISP blocks port 25, you may need to set up your email address on port 587 or 465 if you are using secure email connections (TLS). Our mail servers support outbound SMTP email on ports 25, 587 and 465 (secure connections only).

If you need to change your SMTP to port 587, then here is how you can do it.

Note that in most cases there is an extra step you'll need to complete - changing the port number to 587.

Here's how:

Microsoft Outlook 2002/2003:

1. From the "Tools" menu, select "E-mail Accounts"
2. Choose "View or Change existing email accounts" and click on "Next"
3. Choose your email (POP) account and click on the "Change" button
4. Click on "More Settings"
5. Click on the "Advanced" tab
6. Next to "Outgoing server (SMTP)", change port 25 to 587
7. Click "OK", then click "Next" and "Finish"

Microsoft Outlook 2007:

1. From the "Tools" menu, select "Account Settings"
2. Choose the "Email" tab and double click on your email (POP) account
3. Click on the "More Settings" button
4. Click on the "Advanced" tab
5. Next to "Outgoing server (SMTP)", change port 25 to 587

Microsoft Outlook 98/2000, Outlook Express:

1. From the "Tools" menu, select "Accounts"
2. Select your email (POP) account and click on the "Properties" button
3. Click on the "Advanced" tab
4. Next to "Outgoing server (SMTP), change port 25 to 587
5. Click "Apply", then click "OK" and "Close"

Thunderbird:

1. From the "Tools" menu select "Account Settings"
2. A box will open. Select "Outgoing server SMTP"
3. In the box update your server name to mail.yourdomainname.com and change the port to 587.
4. Select "Ok".