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The Mailinator(tm) Blog

Company blog · mailinator.blogspot.comprogrammingsystemsweb

The Mailinator(tm) Blog is the company blog at mailinator.blogspot.com, writing about programming, systems and web. Since 2007, 55 different Hacker News readers have linked it 89 times, most often “How to get gmail.com banned (2011)”. The last post was in 2020, but the archive is still widely read.

Visit the blog
89mentions?
55HN people?
2007–2025first – last linked?
Links on Hacker News per year · peak 10 in 2011

Too few sampled comments (27) to say how often HN recommends it.?

Why HN links it

HN readers link this blog for posts by Mailinator's developer on race conditions, thread safety, email server architecture, compression, and I/O and concurrency performance.

Summarised by Claude from a sample of 27 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

Email Workflow Testing for your QA Team

Most-linked posts?

  1. How to get gmail.com banned (2011)
    6 people · 6 mentions · first linked 2011-07-01
  2. /2008/02/kill-myth-please-nio-is-not-faster-than.html
    5 people · 5 mentions · first linked 2008-05-12
  3. A Beautiful Race Condition
    5 people · 5 mentions · first linked 2009-06-10
  4. The Architecture of Mailinator (2007)
    5 people · 5 mentions · first linked 2007-03-31
  5. A Beautiful Race Condition (2009)
    4 people · 4 mentions · first linked 2018-07-16
  6. /2008/01/your-own-private-mailinator.html
    3 people · 3 mentions · first linked 2012-02-21
  7. /
    2 people · 4 mentions · first linked 2011-09-22
  8. Mailinator Launches Private Domains
    2 people · 3 mentions · first linked 2014-10-25
  9. How Mailinator compresses its email stream by 90%
    2 people · 3 mentions · first linked 2012-02-21
  10. Benchmarking Talkinator
    2 people · 3 mentions · first linked 2008-08-20

What Hacker News says?

  1. It can also break if the read implementation has mutable side effects, e.g. rebalancing. Java HashMap used to have this causing an infinite loop. I haven’t looked recently but my guess is it still does. https://mailinator.blogspot.com/2009/06/beautiful-race-condi... ‘Not thread safe’ really means ‘not thread safe’.

    Comment linking /2009/06/beautiful-race-condition.html

    on “3,200% CPU Utilization”
  2. Submitted How Mailinator compresses its email stream by 90% as a story · 424 points

    HN discussion
  3. scottlamb · 2025-03-01Recommends
    There's a dead comment replying to yours with this link: https://mailinator.blogspot.com/2009/06/beautiful-race-condi... ...which I don't think I've ever seen before, but nicely explains the problem I saw, and coincidentally is from the same year!

    Comment linking /2009/06/beautiful-race-condition.html

    on “3,200% CPU Utilization”
  4. Submitted How to get gmail.com banned (2011) as a story · 327 points

    HN discussion
  5. According to this[0] you can also use your own domain and send all the mails to mailinator. I dont think those form validation software would so clever to check your MX records (or their alternate domain name du jour would not work) [0] http://mailinator.blogspot.com/2008/01/your-own-private-mail...

    Comment linking /2008/01/your-own-private-mailinator.html

    on “How Mailinator compresses its email stream by 90%”
  6. Submitted Mailinator launches Disposable SMS as a story · 257 points

    HN discussion
  7. As a data point.. Mailinator lets you point ANY domain to it (for free). Email sent there will go into the public Mailinator system. https://mailinator.blogspot.com/2008/01/your-own-private-mai...

    Comment linking /2008/01/your-own-private-mailinator.html

    on “Show HN: I made an open-source anonymous email forwarding service”
  8. Submitted How I sped up my server by 6x (with 1 linux cmd) as a story · 191 points

    HN discussion
  9. Mailinator does the same thing -- http://mailinator.blogspot.com/2011/05/how-to-get-gmailcom-b... I don't see anything wrong with it.

    Comment linking /2011/05/how-to-get-gmailcom-banned-not-that-i.html

    on “It is not possible to detect and block Chrome headless”
  10. Submitted The Architecture of Mailinator (2007) as a story · 188 points

    HN discussion
  11. One way to get around a domain blacklist is to point your own domain to Mailinator. Heck, since last year you can even get your own private Mailinator... http://mailinator.blogspot.com/2014/10/mailinator-launches-p...

    Comment linking /2014/10/mailinator-launches-private-domains_25.html

    on “How to get gmail.com banned (2011)”
  12. Submitted Mailinator.com: Anatomy of a Spammy Campaign as a story · 144 points

    HN discussion
  13. Refresh.io Fulltime, Palo Alto - funded Series A http://www.refresh.io email: paul at refresh.io Title: "Rather Impressive Java Developer" Our current dev team is pretty awesome and we're looking to add to it. Currently we have a few PhD's, few ex-googler's, some tech book authors, couple of ex-linkedin, ex-microsofties, and stanfords, and a bunch of startup vets like Trulia and dealer.com. Heck we even have the guy…

    Comment linking /

    on “Ask HN: Who is hiring? (May 2013)”
  14. Submitted The love and hate of Node.js as a story · 110 points

    HN discussion
  15. You can also use Mailinator[0] and their many other domains for throwaway email addresses. In fact, you can point your MX records to mail.mailinator.com for a custom domain without running a VPS.[1] [0] http://www.mailinator.com/ [1] http://mailinator.blogspot.com/2008/01/your-own-private-mail...

    Comment linking /2008/01/your-own-private-mailinator.html

    on “Spotify and Facebook: Is that phishing?”
  16. Submitted A Beautiful Race Condition as a story · 64 points

    HN discussion
  17. Paul is the author of these slides: http://mailinator.blogspot.com/2011/05/notes-from-programmin... (Its in the blog I told you to go read) So, think he understands how to do it right?

    Comment linking /2011/05/notes-from-programming-leap-to.html

    on “Cogs bad”
  18. Submitted Dear World, email addresses are not identity as a story · 48 points

    HN discussion
  19. Refresh.io Fulltime, Palo Alto - funded Series A http://www.refresh.io email: paul at refresh.io Title: "Rather Impressive Java Developer" Our current dev team is pretty awesome and we're looking to add to it. Currently we have a few PhD's, few ex-googler's, some tech book authors, couple of ex-linkedin, ex-microsofties, and stanfords, and a bunch of startup vets like Trulia and dealer.com. Heck we even have the guy…

    Comment linking /

    on “Ask HN: Who is hiring? (March 2013)”
  20. Submitted You can't type "mailinator.com" in Facebook chat as a story · 38 points

    HN discussion
  21. Fulltime, Palo Alto - funded Series A http://www.refresh.io paul at refresh.io Title: "Rather Impressive Java Developer" Our current dev team is pretty awesome and we're looking to add to it. Currently we have a few PhD's, few ex-googler's, some tech book authors, couple of ex-linkedin, ex-microsofties, and stanfords, and a bunch of startup vets like Trulia and dealer.com. Heck we even have the guy who wrote the Jav…

    Comment linking /

    on “Ask HN: Who is hiring? (August 2013)”
  22. Submitted The Architecture of Mailinator - averaging 4.5million emails a day on a single 2Ghz machine as a story · 37 points

    HN discussion
  23. Incidentally, I've seen unsynchronized access to a Java HashMap cause an infinite loop on .get()s which is (allowably) undefined behavior, and pretty unexpected (see: http://mailinator.blogspot.com/2009/06/beautiful-race-condit... )

    Comment linking /2009/06/beautiful-race-condition.html

    on “Go is amazing, period.”
  24. Submitted Mailinator Launches Private Domains as a story · 36 points

    HN discussion
  25. mwcampbell · 2016-05-16Recommends
    The rise of SSDs has changed the degree to which web apps are I/O bound. So the conventional wisdom from several years ago doesn't necessarily still hold. Check out this blog post from the developer of Mailinator: http://mailinator.blogspot.com/2012/08/your-bottleneck-is-de...

    Comment linking /2012/08/your-bottleneck-is-dead-long-live-your.html

    on “Ruby has been fast enough for 13 years”
  26. Submitted A Beautiful Race Condition as a story · 25 points

    HN discussion
  27. nl · 2010-06-03Recommends
    The fact that he doesn't write much about the code in the article suggests me that he doesn't really know how to make scalable processing If you read his blog, you may revist that opinion. He wrote the custom email server that powers mailinator which processes over 2 million emails an hour. Take a look at http://mailinator.blogspot.com/2009/06/beautiful-race-condit... or http://mailinator.blogspot.com/2009/06/on-jav…

    Comment linking /2009/06/on-java-visibility.html

    on “How I sped up my server by 6x (with 1 linux cmd)”
  28. Submitted How Mailinator searches for the word "pen1s" in 185 emails every second as a story · 24 points

    HN discussion
  29. Looks like he did: http://mailinator.blogspot.com/2012/02/how-mailinator-compre...

    Comment linking /2012/02/how-mailinator-compresses-email-by-90.html

    on “The Architecture of Mailinator (2007)”
  30. Submitted How to get gmail.com banned - not that I did this as a story · 18 points

    HN discussion

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