SSL problem... SSL23_GET_SERVER_HELLO:unknown protocol

[John Reese]

Morning. I've been running into an error message pertaining to SSL
that I don't understand, and I was hoping someone had some insight.
Gmail provides POP access over SSL on port 587, so I tried to use
poplib.POP_SSL, with the following results:

%python
Python 2.4.1 (#1, May 16 2005, 15:19:29)
[GCC 4.0.0 20050512 (Red Hat 4.0.0-5)] on linux2
Type "help", "copyright" , "credits" or "license" for more information.[color=blue][color=green][color=darkred]
>>> from poplib import POP3_SSL
>>> pop= POP3_SSL('pop.g mail.com', 587)[/color][/color][/color]
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.4/poplib.py", line 359, in __init__
self.sslobj = socket.ssl(self .sock, self.keyfile, self.certfile)
File "/usr/lib/python2.4/socket.py", line 74, in ssl
return _realssl(sock, keyfile, certfile)
socket.sslerror : (1, 'error:140770FC :SSL routines:SSL23_ GET_SERVER_HELL O:unknown protocol')[color=blue][color=green][color=darkred]
>>>[/color][/color][/color]

Any suggestions or insight?

[Martin v. Löwis]

Re: SSL problem... SSL23_GET_SERVE R_HELLO:unknown protocol

John Reese wrote:[color=blue]
> Morning. I've been running into an error message pertaining to SSL
> that I don't understand, and I was hoping someone had some insight.
> Gmail provides POP access over SSL on port 587, so I tried to use
> poplib.POP_SSL, with the following results:[/color]
[...][color=blue]
> socket.sslerror : (1, 'error:140770FC :SSL routines:SSL23_ GET_SERVER_HELL O:unknown protocol')
>
>
> Any suggestions or insight?[/color]

It appears that pop.gmail.com *doesn't* provide SSL on port 587.

martin@mira:~/doc$ telnet pop.gmail.com 587
Trying 64.233.185.111. ..
Connected to pop.gmail.com.
Escape character is '^]'.
220 mx.gmail.com ESMTP 13sm5173422wrl

This rather looks like an unencrypted SMTP connection to me. Indeed,
port 587 is the mail submission protocol.

Regards,
Martin

[Paul Rubin]

Re: SSL problem... SSL23_GET_SERVE R_HELLO:unknown protocol

"Martin v. Löwis" <martin@v.loewi s.de> writes:[color=blue]
> martin@mira:~/doc$ telnet pop.gmail.com 587
> Trying 64.233.185.111. ..
> Connected to pop.gmail.com.
> Escape character is '^]'.
> 220 mx.gmail.com ESMTP 13sm5173422wrl
>
> This rather looks like an unencrypted SMTP connection to me. Indeed,
> port 587 is the mail submission protocol.[/color]

It wants a STARTTLS command.

[Stephen Illingworth]

Re: SSL problem... SSL23_GET_SERVE R_HELLO:unknown protocol

John Reese wrote:[color=blue]
> Morning. I've been running into an error message pertaining to SSL
> that I don't understand, and I was hoping someone had some insight.
> Gmail provides POP access over SSL on port 587, so I tried to use
> poplib.POP_SSL, with the following results:[/color]

[snip]
[color=blue]
> Any suggestions or insight?[/color]

Try port 465.

[Stephen Illingworth]

Re: SSL problem... SSL23_GET_SERVE R_HELLO:unknown protocol

John Reese wrote:[color=blue]
> Morning. I've been running into an error message pertaining to SSL
> that I don't understand, and I was hoping someone had some insight.
> Gmail provides POP access over SSL on port 587, so I tried to use
> poplib.POP_SSL, with the following results:[/color]

GMail uses port 995.

[John Reese]

Re: SSL problem... SSL23_GET_SERVE R_HELLO:unknown protocol

On Sun, 17 Jul 2005 11:05:06 +0100, Stephen Illingworth <me@privacy.net > wrote:[color=blue]
> John Reese wrote:[color=green]
>> Morning. I've been running into an error message pertaining to SSL
>> that I don't understand, and I was hoping someone had some insight.
>> Gmail provides POP access over SSL on port 587, so I tried to use
>> poplib.POP_SSL, with the following results:[/color]
>
> GMail uses port 995.[/color]

Yeah. I misread the instructions. I apologize for being an idiot.
It works just fine on port 995.