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__agwa's profile
Andrew Ayer
Andrew Ayer
Andrew Ayer
@__agwa

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Andrew Ayer

@__agwa

Bootstrapped founder of @SSLMate, where I make SSL certificates easier and do #webpki and #CertificateTransparency stuff.

Cambridge, MA + SF Bay Area
agwa.name
Joined November 2011

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    1. Tuomo Sahipakka‏ @tuomosa 26 Apr 2019
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      Google is eating our mail. This is so depressing. https://www.tablix.org/~avian/blog/archives/2019/04/google_is_eating_our_mail/ …

      12 replies 117 retweets 241 likes
    2. _ibsolm_‏ @laurenibsolm 26 Apr 2019
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      Replying to @tuomosa @BrendanEich

      "For example, I have SPF records and DKIM message signing setup on the domains I use" Even with that? Wow.

      1 reply 0 retweets 1 like
    3. Mike Spooner‏ @ShellDozer 26 Apr 2019
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      Replying to @laurenibsolm @tuomosa @BrendanEich

      Except he hasn't set up his reverse DNS correctly, points to http://chandra.tablix.org  instead of pointing to his MX (http://mail.tablix.org ).

      2 replies 2 retweets 5 likes
    4. Andrew Ayer‏ @__agwa 27 Apr 2019
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      Replying to @ShellDozer @laurenibsolm and

      That shouldn't matter. Forward/reverse DNS for http://chandra.tablix.org  are correct for both IPv4 and IPv6, so as long as http://chandra.tablix.org  is used for HELO it should be fine. There's no requirement to send mail only from an MX.

      1 reply 0 retweets 2 likes
    5. Mike Spooner‏ @ShellDozer 27 Apr 2019
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      Replying to @__agwa @laurenibsolm and

      except that his SPF record says that only his MX can send mail for the domain! In other words, his SPF and PTR contradict each other.

      1 reply 0 retweets 1 like
      Andrew Ayer‏ @__agwa 27 Apr 2019
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      Replying to @ShellDozer @laurenibsolm and

      That should be fine. mail and chandra resolve to the same IP addresses, and per RFC7208 Section 5.4 the comparison is done by IP address: https://tools.ietf.org/html/rfc7208#section-5.4 … It's possible that Gmail botches this.

      9:51 AM - 27 Apr 2019
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      • Full Heat Developer 🏳️‍🌈🇪🇺🇲🇱
      2 replies 0 retweets 1 like
        1. BrendanEich‏Verified account @BrendanEich 27 Apr 2019
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          Replying to @__agwa @ShellDozer and

          Wish I knew someone on gmail team to ping. Cc'ing @dalmaer in case he can help.

          0 replies 0 retweets 2 likes
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        2. Mike Spooner‏ @ShellDozer 27 Apr 2019
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          Replying to @__agwa @laurenibsolm and

          Ah, so. Still, making the PTR for 193.95.199.109 refer to http://mail.tablix.org  will help; (as you pointed-out, not from an SPF point of view) but from the FCrDNS-check angle, which is probably what Goog are doing, along with many many other mail services.

          1 reply 0 retweets 1 like
        3. Mike Spooner‏ @ShellDozer 27 Apr 2019
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          Replying to @ShellDozer @__agwa and

          Ah, I stand corrected: the HELO at http://mail.tablix.org  *is* http://chandra.tablix.org , so it should work. Goog have messed-up somewhere - I suspect that they are comparing the "mx" in SPF with the MX donain-names - which they shouldn't.

          0 replies 0 retweets 0 likes
        4. End of conversation

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