Change SMTP Port 25 to Port 587

Microsoft Outlook 2007


1. Open Microsoft Outlook 2007. From the Tools menu select Account Settings.
2. Select your account under the E-mail tab, then click Change button.
3. The Internet E-mail Settings dialog box appears, showing the settings for your existing account. Click the More Settings button.
4. Go to Advanced tab, under Outgoing server (SMTP), change port 25 to 587.
5. Click the OK button.

Other versions of Microsoft Outlook (2000 & 2003)


1. Tools > Account Settings
2. Double click on your email account > More Settings
3. Goto Advanced tab, under Outgoing server (SMTP), change the port 25 to 587.

Windows Mail


1. Start Windows Mail, click the Tools menu at the top of the window and then click Accounts.
2. Select your account under Mail, then click Properties button.
3. Go to Advanced tab, under Outgoing server (SMTP), change port 25 to 587.
4. Click the OK button.

Outlook Express


1. Start Outlook Express, click the Tools menu at the top of the window and then click Accounts.
2. Double click on your email account
3. Goto Advanced tab, under Outgoing server (SMTP), change the port 25 to 587.


Mozilla Thunderbird


1. Open Thunderbird Mail. From the Tools menu select Account Settings.
2. At the left pane, select the entry Outgoing Server (SMTP) and the settings will appear on the right.
3. Select your account, then click Edit.
4. Change port 25 to 587.
5. Click the OK button.
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