Junk emails

You cannot effectively stop spam emails because the spammers change their address multiple times. The only effective way is to change your email address. And be very careful whom you share it with; I maintain an online email account to use with people or companies who insist on an address when they reay don't need it. Selling and buying email address lists online is big business.

Hello rroebuck,

With mailbox rules you can block based on a wide range of content. Especially on the Mac, there is more customization. In your case, you can say

IF From contains "<insert constant part of the email>"

THEN Move to Trash

You can also block on the content of the email if there is a consistent email body.

1. Use rules to manage emails you receive in Mail on Mac - Apple Support
2. Set up rules to filter email in Mail on iCloud.com - Apple Support

I hope this helps!

Most spam emails follow a consistent email, display name, or message content. These can all be configured within rules to block. However, yes babowa is correct in that once your email is on the Internet it is very easy for people to spam it (and people will spam it).

It might be worth looking into Hide My Email (apart of iCloud+) - What is Hide My Email? - Apple Support.

You cannot effectively stop it because the spammers change theirs hundreds of times; by the time you block one address, they will be using hundreds of different addresses and have already abandoned the one you blocked. Trying to block spammers is mostly a waste of time.