Kindly refer to the below steps on switching from SMTP port 25 to other port in your email client settings.
Microsoft Outlook 2007
- Open Microsoft Outlook 2007. From the Tools menu select Account Settings.
- Select your account under the E-mail tab, then click Change button.
- The Internet E-mail Settings dialog box appears, showing the settings for your existing account. Click the More Settings button.
- Go to Advanced tab, under Outgoing server (SMTP), change port 25 to your new assigned port.
- Click the OK button.
Windows Mail
- Start Windows Mail, click the Tools menu at the top of the window and then click Accounts.
- Select your account under Mail, then click Properties button.
- Go to Advanced tab, under Outgoing server (SMTP), change port 25 to your new assigned port.
- Click the OK button.
Mozilla Thunderbird
- Open Thunderbird Mail. From the Tools menu select Account Settings.
- At the left pane, select the entry Outgoing Server (SMTP) and the settings will appear on the right.
- Select your account, then click Edit.
- Change port 25 to your new assigned port.
- Click the OK button.
Other versions of Microsoft Outlook
- Tools > Account Settings
- Double click on your email account > More Settings
- Goto Advanced tab, under Outgoing server (SMTP), change the port 25 to your new assigned port.
Outlook Express
- Start Outlook Express, click the Tools menu at the top of the window and then click Accounts.
- Double click on your email account
- Goto Advanced tab, under Outgoing server (SMTP), change the port 25 to your new assigned port.
Mozilla 1.x
- Launch the Mozilla mail client.
- Drop down the Edit menu, and choose Mail and Newsgroup Account Settings.
- Click Outgoing Server (SMTP).
- On the right hand side next to the server name change the port 25 to your new assigned port.
Netscape 7.x
- Launch the Netscape mail client.
- Drop down the Edit menu, and choose Mail and Newsgroup Account Settings.
- Click Outgoing Server(SMTP).
- On the right hand side next to server name change the port 25 to your new assigned port.
Netscape 4.x
- Launch Netscape.
- Drop down the Edit menu, and choose Preferences.
- Expand Mail and Newsgroups by click the + sign.
- Click Mail Servers.
- 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:
- Navigate to your Eudora install directory.
- Look in the Eudora directory for the directory “extrastuff”.
- 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.
- Launch Eudora.
- Drop don the Tools menu, and choose Options.
- Click on Ports, change from 25 to your new assigned port.
Eudora for Mac
- 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.
- Launch Eudora.
- Drop down the Special menu, and choose Settings.
- Click on Ports and Protocols.
- Change the port from 25 to your new assigned port.
Entourage
- Launch Entourage.
- Drop down the Tools menu, and choose Accounts.
- Click on Mail, and go to Properties.
- Click Advanced Sending Options.
- Make sure the box of “This POP service requires a secure connections” is unchecked.
- Check the box of “Override default SMTP port:” and enter in your new assigned port.
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