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User Info YOUR Email? Not Really.; entered at 2018-07-07 11:03:05
Tickerguy
Posts: 153449
Registered: 2007-06-26
Port 25 (the SMTP port) is blocked but other ports are not (you CAN'T block them generally or nothing would work at all!)

But nobody else will know how to talk to it, so you need a "visible" place with a standard listener that can forward to the "real" one on a non-standard port. AND, you have to be careful how you do that or it can (and WILL, almost-instantly) be abused for mass-spam, which will result in the company shutting your forwarder down.

The TRUTH is that it's half about spam and half about the ISPs using robots to scan your email stored on THEIR machines, and they SELL that. Google does it and so does damn near everyone else -- and no, they don't fairly disclose that either.

Last modified: 2018-07-07 11:04:10 by tickerguy

2018-07-07 11:03:05