Switching from SMTP port 25 to other port

Kindly refer to the below steps on switching from SMTP port 25 to other port in your email client settings.

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 your new assigned port.
  5. Click the OK button.

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 your new assigned port.
  4. Click the OK button.

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 your new assigned port.
  5. Click the OK button.

Other versions of Microsoft Outlook

  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 your new assigned port.

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 your new assigned port.

Mozilla 1.x

  1. Launch the Mozilla mail client.
  2. Drop down the Edit menu, and choose Mail and Newsgroup Account Settings.
  3. Click Outgoing Server (SMTP).
  4. On the right hand side next to the server name change the port 25 to your new assigned port.

Netscape 7.x

  1. Launch the Netscape mail client.
  2. Drop down the Edit menu, and choose Mail and Newsgroup Account Settings.
  3. Click Outgoing Server(SMTP).
  4. On the right hand side next to server name change the port 25 to your new assigned port.

Netscape 4.x

  1. Launch Netscape.
  2. Drop down the Edit menu, and choose Preferences.
  3. Expand Mail and Newsgroups by click the + sign.
  4. Click Mail Servers.
  5. On the right side change the Outgoing Mail Server: from mail.domain.com to mail.domain.com:xx (xx is your new assigned port).

Eudora for Windows
Eudora has chosen to hide the Port change option in version 6.0 and above, to enable changing ports:

  1. Navigate to your Eudora install directory.
  2. Look in the Eudora directory for the directory “extrastuff”.
  3. In this directory is a file named “esteric.epi”. Drag (copy or move) this file into the main Eudora directory. There will now be options extra listed, including a Ports Page.

To change the outgoing mail port from 25 to your new assigned port.

  1. Launch Eudora.
  2. Drop don the Tools menu, and choose Options.
  3. Click on Ports, change from 25 to your new assigned port.

Eudora for Mac

  1. For version 6.0 and above, quit Eudora and look in the Eudora Application Folder for the folder “Extras”. In this folder is a file “Esoteric Setting”. Drag this file into the “Eudora Stuff” folder.
  2. Launch Eudora.
  3. Drop down the Special menu, and choose Settings.
  4. Click on Ports and Protocols.
  5. Change the port from 25 to your new assigned port.

Entourage

  1. Launch Entourage.
  2. Drop down the Tools menu, and choose Accounts.
  3. Click on Mail, and go to Properties.
  4. Click Advanced Sending Options.
  5. Make sure the box of “This POP service requires a secure connections” is unchecked.
  6. Check the box of “Override default SMTP port:” and enter in your new assigned port.

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