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You don't need a mail server to send mail. One can send mails through a VPN as client.
by chmike 4y ago
You don't need a mail server to send mail. One can send mails through a VPN as client.
- johnklos 4y agoThen the spam is coming from the email servers which are used to relay that spam. Headers can be forged, so the source before the spam server can't be trusted as real.