Tell HN: Gmail tampers with incoming email body content

9 chrisjj 10 8/2/2025, 10:57:37 AM
Comparing Gmail page source with message original on for example the latest genuine Amazon scam warning shows linkification of "amazon.co.uk" by Gmail. Quite ironic given the warning about links in scam mails.

Gmail: https://i.imgur.com/MQH1shA.png Fastmail: https://i.imgur.com/tczhO8g.png

Gmail Print likewise: https://i.imgur.com/SWoPXqs.png

God help anyone printing emails to shows tampering or lack of for a legal case. And does Gmail have any "Display un****ed" option?? Er, no.

And Amazon, perhaps check your emails on the world's top web client?

Comments (10)

nubg · 32m ago
I don't get what the problem is? Gmail turns text that looks like a link into a clickable link. What could the negative implications of that be?
john01dav · 28m ago
If they have some system to edit emails as they come in, then other less benign editing could be present, either profitable-malicious or from a bug. With no indication of editing and no easy way to view an unedited email this would also fly under the radar in many cases.
john01dav · 30m ago
In what client are you viewing this in your screenshots? If their web mail client displays things as links that's much less concerning to me than the SMTP backend tampering. It's expected for an email client to have quality of life features.
AlexErrant · 29m ago
> does Gmail have any "Display un**ed" option?? Er, no.

On the email, click the dotdotdot, show original. https://imgur.com/a/ymjtfCI

meinersbur · 26m ago
GMail (and Fastmail) are rendering the email. It just happens that the email and we webbrowser are both HTML. In no case should they just literally forward the email HTML to the browser. They scrub JavaScript, non-whitelisted HTML elements, rewrite links/external resources including tracking pixels.

You can see the raw email with "show original" in the options

beardyw · 13m ago
I'm afraid my righteous indignation only flickered slightly.
andylynch · 29m ago
Outlook’s done this for like a decade? Ditto Apple mail.

I think they do the same with email addresses and phone numbers too, it’s kind of useful and not a big deal.

VladVladikoff · 31m ago
I’m so confused. Isn’t Amazon.co.uk their official domain in the UK? How is that link a scam?
endominus · 25m ago
The OP is not claiming that the link is being changed; the complaint is that a hyperlink is being generated from the plaintext URL. The HTML body of the email is being modified.
qunt · 22m ago
fucker of cocks