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epistasislast Friday at 8:34 PM2 repliesview on HN

If you don't control your own domain fully, almost all email services let you do:

[email protected]

And have it go to [email protected] with the servicetag still in the To: field. At least, I have never encountered a problem with this.


Replies

pestslast Friday at 10:31 PM

Some sites (hulu maybe? iirc) strip off the + and treat it as a bare email, with dedupe checks and all that.

Spammers won't respect the + either, they will clean their list of any +tags before sending.

The best I've actually come across is to abuse gmails period policy. I haven't seen sites dedupe this or perform any other checks or manipulation.

If you have enough letters in your alias you can treat the possible period locations as binary. For example, pests@ would have 4 edible spots, so I could make 16 different dot addresses: pests@, pest.s@, pes.ts@, pes.t.s@, pe.sts@, pe.st.s@, [...], p.e.s.t.s@

Then you can just remember/record the decimal ID you used per site.

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cheschirelast Friday at 8:53 PM

And then the spammers (or other illegitimate source) just add this to their processing…

^([^@+]+)\+[^@]*(@.*)$

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