Live data from Hacker News

Tell HN: After 10 years of experiments, custom username emails receive no spam

news.ycombinator.com

11–20 of 359 posts

Re: Tell HN: After 10 years of experiments, custom username emails receive no spam

#11
I only have 2 addresses that receive spam:

1- An address I used for buying an RPi from a french retailer (kubii.fr) which seems to have had a data breach

2- An address I used at Decathlon when I signed up for 4x payment plan. They seem to share the address you use with Sofinco which keeps spamming me even after unsubscribing.

Re: Tell HN: After 10 years of experiments, custom username emails receive no spam

#15

I'm glad you had a good experience. I had a different one. I've ran my own domain for longer than you have, and many emails have been compromised. Some are 100% from companies selling the emails to sister companies. The majority, though, is from a company itself being compromised by hackers / database access / etc. LinkedIn, Neopets, ProFlowers, TeeSpring, etc. I can go on.

Similar here. I don't recall when I started doing it, but it's been at least 20 years. I get a fair amount of spam from "well, what did you expect?" addresses (social sites, mostly) and some from addresses that are hard to pin down (paypal address might be shared to a seller; amazon address is definitely shared to sellers).

The most surprising one is ongoing spam (and semi-legitimate contacts from recruiters) to an address that I only (intentionally) used at O'reilly. I just checked HIBP and that address was exposed in the July 2018 Apollo exposure.

Re: Tell HN: After 10 years of experiments, custom username emails receive no spam

#16
I’ve been doing this for over 20 years, and have the same results. The only spam I get is to a few addresses where there was a data breach (LinkedIn). I have another account where I don’t do this, and it gets around a dozen messages per day from the completely illegal spammers (no opt-out, etc).

However, it’s entirely possible I’m not seeing many messages that are getting blocked by spam controls (gmail), so I hesitate to draw any sweeping conclusions about it.

I’m also very cautious about what I sign up for. I can say that from what I’ve seen with others, the amount of spam and phishing is very dependent on what you do. For example marketing people need to go widely distribute their addresses as part of their job, and I definitely see them receiving far more spam/phishing than others.

Re: Tell HN: After 10 years of experiments, custom username emails receive no spam

#17
post #7

I'm glad you had a good experience. I had a different one. I've ran my own domain for longer than you have, and many emails have been compromised. Some are 100% from companies selling the emails to sister companies. The majority, though, is from a company itself being compromised by hackers / database access / etc. LinkedIn, Neopets, ProFlowers, TeeSpring, etc. I can go on.

Compromises are 99% of those I see (similar setup) - the last 1% is acquired companies that have pivoted/do something else. It's not quite spam, it's not quite illegitimate, but it's not what I signed up for.

I've seen a shift. Between 2005-2010, I used [company]@[mydomain.com], and I noticed that I would get spam in the form of [gibberish]@[mydomain.com], presumably from spammers who were just targeting email addresses with a catch-call filter. In fact, around that time, my hosting provider, Dreamhost, started restricting email catch-alls to deal with this problem.

But then from around 2010 onward, that type of spam became much less common, and nowadays it's as you say. The vast majority, probably 90%, come from compromised accounts, like linkedin@[mydomain.com]. The rest hit the unique email addresses I have submitted in domain registration forms.

That's even more surprising considering that I've since shifted to using [username]+[company]@[mydomain.com]. Spammers could pretty easily strip off the `+[company]`, but I haven't seen that happen much.

Re: Tell HN: After 10 years of experiments, custom username emails receive no spam

#18
I've been doing this for over 10 years, but I do get spam on some of them.

It comes in two forms.

One is that companies subscribe to the marketing emails without asking. When this happens, they tend to re-offend on unsubscription, so they had to be blocked by blacklisting.

The second form is that they do in fact share my email address with others. Not two months ago booked a hotel in Europe and got a spam from some other company before I got a booking confirmation. So this happens.

That all said, the point of using per-company emails is less about spam and more about denying them an option of collating my online activity. The fact that you don't get spam doesn't mean your email address (+ relevant personal details) aren't getting resold, shared and otherwise vacuumed by the data collectors. That's them I more worried about than an occasional spam.

Re: Tell HN: After 10 years of experiments, custom username emails receive no spam

#20
I do this and I definitely get spam to addresses associated with e-mails leaked or sold in bulk to the highest bidder. I rarely _see_ it as most of the time "unsubscribe" link works (for sold e-mail lists, as the buyers usually try to maintain some sort of decency) and for those where it is useless (shameless "enlargement" type emails, usually from stolen email databases) it is usually classified correctly as spam by an e-mail provider or e-mail client.

So, I never had to explicitly filter e-mails out by "To:" field, but using this system still gives me some sense of control.

Post reply on HN