Outlook (v16.x) for Apple Mac OS X - Setup Guide

Important Points

  • First you need to make sure the addresses you will be sending from have been authorised on your account in our Control Panel
  • These instructions assume your email account has already been setup and is collecting email correctly
  • Make a note of any settings that you change
  • Only change the items specified - you should not need to change your email address or POP3 / IMAP settings
  • These instructions are only for Outlook for Apple Mac OS X (v16.x) - for other programs see How To Setup AuthSMTP

Step One

  • Open the Microsoft Outlook app on your Apple Mac computer
Outlook for Mac v16 - Step 1 - Open Outlook for Mac - Click on icon

Step Two

  • Once open, click on the 'Tools' menu from the navigation at the top of your screen
  • Click on 'Accounts'
Outlook for Mac v16 - Step 2 - Tools - Accounts

Step Three

  • You will now see a list of accounts setup in Outlook for Mac
  • Click on the account you wish to setup with AuthSMTP in the left-hand column
  • You will then see the current settings for this account, please make a note of these before making any changes
Outlook for Mac v16 - Step 4 - Tools Tab - Accounts

Step Four

  • The next step is to determine if you are using Microsoft Cloud Sync, if the text is visible as shown in the image below that does mean that it is enabled.
  • If you are not using Microsoft Sync, please proceed to Step Five
  • If you are Microsoft Sync, you will not be able to modify the SMTP server settings as they have synchronised to your other devices
Outlook for Mac v16 - Step 3 - Tools Tab
  • The only way this can be disabled is by removing the email account from Outlook entirely and re-adding it with Microsoft Sync disabled. This is not something we can guide you through or recommend that you do unless you are confident in doing so and understand the implications, if in doubt please consult with an IT professional.

Step Five

  • You can now change the settings to use your AuthSMTP account
  • Set the 'Outgoing server' to 'mail.authsmtp.com'
  • Tick 'Override default port'
    • The default port is '25'
    • We recommend that you set this to '2525'
    • If you want to test which ports are available from your computer please use our web based SMTP port checker
  • Tick 'Use SSL to connect'
  • Then click the 'More Options...' button
Outlook for Mac v16 - Step 5 - Accounts Window

Step Six

  • This section show the details that Outlook for Mac will use to authenticate with the outgoing SMTP server
  • Please make a note of these settings before continuing
Outlook for Mac v16 - Step 6 - Outgoing SMTP Server Settings

Step Seven

  • Please enter your AuthSMTP username and password
  • Your username will typically be two letters and five digits (e.g. ac10000)
  • It is important to remember that you have two passwords on your account, one for the control panel and one for sending email so it is important that you enter the correct one
  • Once you have entered the details click 'OK'
Outlook for Mac v16 - Step 7 - Outgoing SMTP Server Username and Password

Step Eight

  • The setup is now complete, please close the 'Accounts' window and try sending a test message