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unable to test fastmail.com properly

Open Fuseteam opened this issue 1 month ago • 5 comments

I'm a customer at fastmail.com and while they don't have dnssec and dane yet for reasons outlined in: https://www.fastmail.com/blog/dnssec-dane/

They do support STARTTLS for incoming and outgoing mail: https://www.fastmail.com/blog/lets-starttls-everywhere/

however the test suite is unable to test this, which drops the test score a fair bit resulting in it being lower than it could be

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I believe internet.net should be able reflect the real state of the provider

Fuseteam avatar Dec 07 '25 19:12 Fuseteam

I get an test error on fastmail.com

Not sure if it's just rate limiting / blocking on the Fastmail size or that it's related to the fact it has quite some IPv4 addresses that are all checked in serial (and therefore timeout):

fastmail.com has two MX records, one with 8 IPv4's and one with 2 IPv4's

  • Source: https://github.com/internetstandards/Internet.nl/issues/1592#issuecomment-2578425009

Related:

  • #1018

bwbroersma avatar Dec 11 '25 10:12 bwbroersma

seems it got fixed?

https://internet.nl/mail/smartsecure.solutions/1691450/#

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Fuseteam avatar Dec 12 '25 11:12 Fuseteam

nvm it fails again, the test seems unreliable on when it successfully tests

https://internet.nl/mail/smartsecure.solutions/1691526/#

Fuseteam avatar Dec 12 '25 12:12 Fuseteam

I have reached out to fastmail and they recommend you guys reach out to them to look into the specifics on why the test errors out from time to time

Fuseteam avatar Dec 13 '25 04:12 Fuseteam

it seems mailfence.com has a similar problem: https://internet.nl/mail/mailfence.com/1693700/#mailtls unsure if it is the same underlying issue

Fuseteam avatar Dec 15 '25 18:12 Fuseteam