Mac Mail - Mavericks 10.9 - Alternate Port - Setup Guide

Are you using the latest version of Apple's Mac OSX?
Please see our Mojave 10.14 Mac Mail SMTP server setup guide here.

Important Points

  • First you need to make sure the email address(es) you will be sending from have been authorised for your account in our Control Panel .
  • These instructions assume your email account has already been setup and is collecting email correctly.
  • Take a note of any settings you change.
  • Only change the items specified - you should not need to change either your email address, POP3 server, POP3 username / password.
  • We have instructions for both default SMTP port and alternate SMTP port configurations - alternate port is generally used if your ISP blocks the normal port 25 SMTP access (as many do these days!).

Step 1

  • Open Mac Mail on Mavericks by clicking the Icon
Mac Mail - Step 1 - Open Mail

Step 2

  • Go to the Mac 'Mail' menu and click 'Preferences'
Mavericks 10.9 - Mac Mail - Step 2 - Open Mail menu and click Preferences

Step 3

  • Click on the Mac Mail account you wish to edit, you may have multiple accounts so if you do you will need to edit each one separately
  • Click on the 'Outgoing Mail Server' drop down menu and select 'Edit SMTP Server List...'
Mavericks 10.9 - Mac Mail - Step 3 - Click edit SMTP Server List

Step 4

  • Click on the plus (+) button to add another SMTP server
  • For the description enter 'AuthSMTP'
  • For the Server Name enter ''
Mavericks 10.9 - Mac Mail - Step 4 - Enter Outgoing Mailserver

Step 5

  • Go to the 'Advanced' tab
  • Click on 'Authentication' and select 'MD5 Challenge-Response'
Mavericks 10.9 - Mac Mail - Step 5 - Set Authentication to MD5 Challenge-Response

Step 6

  • Enter the AuthSMTP Username and Password that has been emailed to you
Mavericks 10.9 - Mac Mail - Step 6 - Enter AuthSMTP Username and Password

Step 7

  • Click on the radio button for 'Use Custom Port' and enter the port number as '2525'
  • Click OK
Mavericks 10.9 - Mac Mail - Step 7 - Change SMTP port to 2525

Step 8

  • You have now setup the AuthSMTP outgoing mail server
  • Please ensure that 'AuthSMTP' is selected in the drop-down menu next to'Outgoing Mail Server'
  • Close the window
Mavericks 10.9 - Mac Mail - Step 8 - Complete setup of SMTP Server

Step 9

  • When prompted click 'Save' to keep the changes
Mavericks 10.9 - Mac Mail - Step 9 - Save changes to SMTP outgoing mail relay account

Step 10

  • When you first click 'Get Mail' or go to send an email you may need to re-enter your AuthSMTP password
Mavericks 10.9 - Mac Mail - Step 10 - Close window to complete setup of AuthSMTP outgoing mail relay service

Step 11

  • If you would like to use your AuthSMTP service with multiple accounts you just need to click on the account you wish to edit, click on the 'Outgoing Mail Server' drop down menu and then select 'AuthSMTP' from the list of servers.
  • All Done!