Hi ALbert,
On 2016.12.29 13:27, Albrecht Dreß wrote:
Am 29.12.16 19:12 schrieb(en) Jack:
openssl s_client -starttls imap -connect your.provider.com:143
I get a timeout for yahoo, at&t, and gmail. (AT&T email is actually
run by Yahoo, although it's an att.net server.) As far as I can
tell, all three should support this. (I mainly use POP3 with balsa
on my main desktop PC, but I use IMAP on my laptop, tablet, and
phone.) I'm using openssl 1.0.2j. Is this likely a configuration
issue on my part, or are there known problems with any of those
providers?
Maybe they don't support IMAP w/ STARTTLS over port 143, but only
IMAPS (port 993)? I.e. you have to say
openssl s_client -connect your.provider.com:993
as to negotiate the ssl connection *before* starting the protocol.
At least for yahoo, this works:
You got the same result I did for yahoo. inbound.att.net didn't
respond at all. imap.gmail.com gives a lengthy response, but doesn't
respond to "0001 CAPABILITY" and I can't tell what they are expecting.
It looks like they are talking a different language, which doesn't
surprise me much.
Sorry I wasn't actually able to provide any useful information.
Jack
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