Adam Mosseri:
Second, threads posted by me and a few members of the Threads team will be available on other fediverse platforms like Mastodon starting this week. This test is a small but meaningful step towards making Threads interoperable with other apps using ActivityPub — we’re committed to doing this so that people can find community and engage with the content most relevant to them, no matter what app they use.
That’s not even true, I run my own mailserver for private and a business and it works like expected.
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Absolutely, Outlook.com is by far the worst in this regard. I stopped running my own mail server a few years ago because it was just unbearable.
Are you using a residential IP? There are lists of residential IP ranges for mail servers to block, no matter how well configured.
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Hm, I thought hosting providers should be fine unless you just happened to get an IP in a block that some spammers also used to use… but then again, I stopped self-hosting email several years ago because of all the hoops one has to constantly jump through (for reference, it used to work fine from Online.net’s —now Scaleway— bare metal servers, like 5 years ago).