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A comment on Helm: Personal Email Server. Parent comment

Re:Helm: Personal Email Server by dev_dull on Wednesday October 17, 2018 @01:45PM (#18241505)
It’s a $50 one time fee. You need to call their “premium” service. Not sure if they do it per port or what, but I asked them to open all my ports and verified 25 is accessible (123 udp inbound still blocked for unexplained reasons).

They’re still clueless. I tried to explain that it’s being blocked by AT&T and not my router but eventually I just gave up. Their process involves a logmein session where they take control and mess with your router. Gahd it’s awful.

They also randomly added my “device” (home server) to the DMZ so all of its ports were exposed. Be very careful.

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Re:Helm: Personal Email Server by pathseeker on Wednesday October 17, 2018 @04:56PM (#18243743)
>123 udp inbound still blocked for unexplained reasons

NTP was part of a massive DRDoS not too long ago. It's possible they pruned it somewhere much further up the network under the (not insane) assumption that most customers don't need to run their own time servers that answer public queries.

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