In all such cases it is a balance between security and usability.  Only some of 
the fixes are client side though.

A lot of what you describe would be effectively implemented by moving to a 
plain text mail client (mutt and emacs are still around decades later).

--srs
________________________________
From: mailop <[email protected]> on behalf of Tim Bray via mailop 
<[email protected]>
Sent: Friday, October 10, 2025 2:20:40 PM
To: [email protected] <[email protected]>
Subject: [mailop] Phishing prevention in email clients


Hi,

I've been wondering about how email clients could change to make phishing less 
effective.

1) Display the email address not the name in your email folders

From: DVLA Services 
<[email protected]<mailto:[email protected]>>
becomes
From: [email protected]<mailto:[email protected]>

So, on a normal day, you would get used to seeing emails from 
`[email protected]<mailto:[email protected]>` rather than `Tim Bray`

2) in html email, the a tag contents are replaced with the URL you will go to.
so <a href='https://dvla.tax.scam.domain.example.org' style='button'> Vehicle 
tax</a> becomes https://scam.example.org/

And any images inside an <a></a> are removed



I'm sure the scammers will move on, but it's just so easy to make something 
look convincing. Apple, Gmail, thunderbird, roundcube and outlook. Just pick a 
day and all change.

I'm open to comments and feedback.    I'm interested if I've missed an obvious 
other way hide stuff if you are scamming people.

(and sorry for picking on DVLA, but my mailbox is fillling up with people 
faking being you this morning.  DLVA is the uk authority where you register and 
pay the tax for your Car)



--
Tim Bray
Huddersfield, GB


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