Gmail Mail Delivery Subsystem Being Used for Spam Delivery Bypassing Filters

Posted4 months agoActive4 months ago

good_intentions

20 points

5 comments

old.reddit.comTechstory

calmnegative

Debate

20/100

GmailSpamEmail Security

Key topics

Gmail

Spam

Email Security

Spammers are exploiting Gmail's mail delivery subsystem to bypass filters and deliver spam messages as attachments to legitimate emails, prompting concerns and reports from users.

Snapshot generated from the HN discussion

Discussion Activity

Light discussion

First comment

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Peak period

0-1h

Avg / period

1.7

Key moments

01Story posted
Sep 17, 2025 at 11:40 AM EDT
4 months ago
Step 01
02First comment
Sep 17, 2025 at 11:40 AM EDT
0s after posting
Step 02
03Peak activity
3 comments in 0-1h
Hottest window of the conversation
Step 03
04Latest activity
Sep 17, 2025 at 2:28 PM EDT
4 months ago
Step 04

Generating AI Summary...

Analyzing up to 500 comments to identify key contributors and discussion patterns

Discussion (5 comments)

Showing 5 comments

good_intentionsAuthor

4 months ago

1 reply

Checking to see if this is happening to anyone else. This is a clever tactic where spammers are exploiting the GMail mail delivery subsystem with a return path to a legit GMail address to have the subsystem deliver the original spam message as an attachment to the recipient.

Denatonium

4 months ago

It's been happening to me too. I don't want to flag the messages as spam, as the mail delivery subsystem is doing exactly as it is supposed to, but this is a problem.

supportengineer

4 months ago

1 reply

This will be solved as soon as someone figures out a way to get a promotion out of it

good_intentionsAuthor

4 months ago

Right?! Some low hanging grapes right here ripe for the promotion track. Something something revenue and total addressable opportunity.

jdlyga

4 months ago

Yup happens on a daily basis

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ID: 45277167Type: storyLast synced: 11/20/2025, 6:27:41 PM