Re: [ietf-smtp] own mail server: DNS / static IP / no bad reputation?

Claus Assmann <ietf-smtp@esmtp.org> Mon, 12 October 2020 11:13 UTC

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Date: Mon, 12 Oct 2020 13:13:18 +0200
From: Claus Assmann <ietf-smtp@esmtp.org>
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Subject: Re: [ietf-smtp] own mail server: DNS / static IP / no bad reputation?
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On Mon, Oct 12, 2020, Sam Varshavchik wrote:

> They intercept outbound port 25, and simply don't advertise STARTTLS.

That's what I feared (like that Cisco "FW"). Is that a common
behaviour of VPS providers?  If so, those would be useless for me.
I guess I have to check their policies / ask them.

> Only STS will catch that.

Or DANE or "hand configured" setups enforcing STARTTLS.