Displaying 2 results from an estimated 2 matches for "smtptls".
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smtp_tls
2019 Dec 04
0
Forcing TLS for SMTP?
...www.eff.org/deeplinks/2014/11/starttls-downgrade-attacks
Our company sometimes does business in countries hostile to encryption and if
there's a means to enforce this appropriately, I'd like to implement it.
Seems to me something like a DMARC DNS TXT flag would be appropriate for this.
smtptls=none|any|required; ? But that's just an idea.
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2019 Dec 04
2
Forcing TLS for SMTP?
I have a goal of securing email. Updated the company mail server and DNS
(CentOS 7 + Postfix, otherwise pretty stock) with support for SPF, DKIM, and
DMARC. So far, all good, and everything "just works".
Our mail server has supported SMTP / TLS for a long time, but recently I've
been considering requring TLS all the time.
Is there anybody here who's done this? Has it