JakeSully-Navi@alien.topBtoSelf-Hosted Main@selfhosted.forum•Recommend a server not HetznerEnglish
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11 months agoLike other said to get blocked for some stuff is either because you used server for email spamming so they choose to block it.
When setting up a email server you must make sure no one else can compromise it and use it for sending out spam mails.
Well no port should be blocked on default. Not even 25