How can I block emails with no sender?

I have been getting close to 900 No Sender emails on iPhone 12 with latest upgrade after I blocked spam domains. Now on my desktop instead of No Sender my entire email is in place of No Sender. I am at the point where It’s time to buy a new phone the question is do I stay with Apple? Are they able to fix these problems.

The most effective way I have found that seems to work and Does not delete all your emails is on a Mac go to preferences “Rules” create one rule don’t involve any any other rules with it .. “From” “Does Not Contain” “ . “ .. then create a mailbox on your Mac called “ filtered mail “ have this rule send any mail to this box… only use it for this rule.. don’t add it to a pre-existing rule. Then, when you go to your mail, you look in the filtered box, anything that should be kept for whatever reason you can transfer back to the inbox and anything else you just select all and delete.

Good question. I haven't tried this since I added filters via my imac for all ISP accounts but if you have ONLY an iPhone this may help. I have not used it myself:

https://clean.email/how-to-filter-emails/iphone-email-filter#:~:text=Open%20the%20Mail%20app%20on,filters%20and%20iPhone%20Mail%20rules.

"This thread on the Apple Community line How can I block emails from “no sender?” - Apple Community

You and you mention another post. The point is, a tiny fraction of the millions of successful users does not establish a problematic trend..

No iOS device here, but does this help?

Set up rules to filter email in Mail on iCloud.com - Apple Support

Is it an iCloud account?

https://clean.email/create-email-rules/apple-mail-rules#:~:text=Can%20I%20Create%20Rules%20in,few%20clicks%2C%20on%20any%20device.

1. I'd think the Author would not see the Me Too, certainly would be redundant. Can't explain why you did... I see it now.
2. My guess is a couple million, seems so from paste changes... Apple doesn't think users know what they need. :(

The Rule simply needs to use... To:>does not contain> @...

You can also do this with your rr.com email. Log into you rr.com webmail and create the same rule as you do with Apple's Mail.

First in Rules click on To:, then does not contain...

Works! I set it up to send to trash.

Works like a charm. Thanks!!

Apple made our email subject to spammers. Apple profits mightily from our purchases, but can seem to help us out with spamming. How the **** come! Come on Apple, do your job.

Have you selected a message when you try to access that menu?

Try the following:

1 - Control (right) - click on the email toolbar and select Customize Toolbar.

2 - select and drag the "All Headers" icon into the toolbar and click Done.

3 - open one of the problem emails into it's own window and click on the "All Headers" tool.

I'm also RoadRunner/Spectrum. Worked here!