On Sat, Aug 14, 2021 at 02:43:29PM +0200, Matus UHLAR - fantomas
<uh...@fantomas.sk> wrote:
- dedicated port for smtp/ssl was deprecated (in fact never standrdized)
On 15.08.21 09:04, raf wrote:
I think that used to be true, but they had a rethink.
This proposed standard (Jan 2018) indicates so:
3.3. Implicit TLS for SMTP Submission
https://www.rfc-editor.org/rfc/rfc8314.html#section-3.3
this is for submission. I'm not exactly sure what was the original supposed
usage, but many providers started using it for implicit-ssl submission and
it stayed like this and was standardized like this...
So "smtps" is dead. Long live "submissions".
But it isn't for server-to-server use.
precisely.
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