Sending emails using Apple's SMTP service for icloud.com or me.com email accounts.
Posted by Sinclair Hughes, Last modified by Sinclair Hughes on 06 July 2022 10:53 AM
In Apple's words "App-specific passwords are passwords for your Apple ID that let you sign in to your account and securely access the information you store in iCloud from a third-party app. For example, use app-specific passwords with mail, contacts, and calendar services not provided by Apple."
If you follow the links in the above page and log into your apple account you can find the option to Generate Password... for App-Specific Passwords.
You can have up to 25 App-Specific passwords.
The SMTP settings you need to use are available for your icloud.com or me.com email address from the following URL