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mention good hosting providers may initially block outgoing smtp too

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Mechiel Lukkien 2023-06-12 16:35:03 +02:00
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@ -335,6 +335,10 @@ often-used blocklists. It's typically not a good idea to host an email server
on the cheapest or largest cloud providers: They often don't spend the
resources necessary for a good reputation, or they simply block all outgoing
SMTP traffic. It's better to look for a technically-focused local provider.
They too may initially block outgoing SMTP connections on new machines to
prevent spam from their networks. But they will either automatically open up
outgoing SMTP traffic after a cool down period (e.g. 24 hours), or after you've
contacted their support.
After you get past the IP blocklist checks, email servers use many more signals
to determine if your email message could be spam and should be rejected. Mox