Thanks. That got me closer. I was not using ssl. When I took your code and
tried to connect to localhost I got
STARTTLS extension not supported by server
when I connected to mx-out03.wmcloud.org I got
(220, b'TLS go ahead')
But when I then do
server.sendmail("[email protected]", "[email protected]",
... """Subject: smtplib example from Cloud VPS
... ...
... ... Hello world.
... ... ---
... ... Bryan""")
I get SSL: WRONG_VERSION_NUMBER
In the console /usr/sbin/sendmail -v [email protected] <email.txt
works just fine, so maybe I should just use subproc.
On Mon, May 15, 2023 at 7:44 PM Bryan Davis <[email protected]> wrote:
> On Mon, May 15, 2023 at 2:57 PM Tim Moody <[email protected]> wrote:
> >
> > I'd like to send an email from a python3 process on a wmcs VPS to report
> errors.
> >
> > I looked at https://wikitech.wikimedia.org/wiki/Help:Email_in_Cloud_VPS
> but could use some help.
> >
> > sudo echo "Subject: sendmail test2" | /usr/sbin/sendmail -v <myemail>
> works.
>
> The `sudo` here does nothing useful. It is bound to the `echo`
> invocation and not the `sendmail` one.
>
> > When I try to send the equivalent from python smtplib I get a 221 error
> message.
>
> 221 is the SMTP status code for closing connection/goodbye. This isn't
> specifically an error, instead it means that the SMTP server has
> decided to end the session.
>
> * Are there other status codes you see from your attempted python code
> prior to the 221?
> * What SMTP server are you connecting to?
> * Is the python code available somewhere for review?
>
> Here is a quick example of sending email using Python 3.9 and smtplib
> from inside Toolforge:
>
> $ become bd808-test -- webservice python3.9 shell -- python3.9
> >>> import smtplib
> >>> import ssl
> >>> context = ssl.create_default_context()
> >>> server = smtplib.SMTP("mail.tools.wmcloud.org", 587)
> >>> server.starttls(context=context)
> (220, b'TLS go ahead')
> >>> server.sendmail("[email protected]",
> "[email protected]", """Subject: smtplib example from Toolforge
> ...
> ... Hello world.
> ... ---
> ... Bryan""")
> {}
> >>> server.quit()
> (221, b'mail.tools.wmcloud.org closing connection')
>
> Things would typically look similar from a Cloud VPS project. The
> major change would be to use mx-out03.wmcloud.org or
> mx-out04.wmcloud.org as your outbound SMTP service. There is a bit
> more complication in using TLS as well due to the x509 certificate
> being a bit of a mess (bad subject and expired):
>
> $ ssh devportal-demo01.devportal.eqiad1.wikimedia.cloud
> $ python3.9
> >>> import smtplib
> >>> import ssl
> >>> context = ssl.create_default_context()
> >>> context.check_hostname = False
> >>> context.verify_mode = ssl.CERT_NONE
> >>> server = smtplib.SMTP("mx-out03.wmcloud.org", 25)
> >>> server.starttls(context=context)
> (220, b'TLS go ahead')
> >>> server.sendmail("[email protected]", "[email protected]",
> """Subject: smtplib example from Cloud VPS
> ...
> ... Hello world.
> ... ---
> ... Bryan""")
> {}
> >>> server.close()
>
> I hope that helps a bit.
>
> Bryan
> --
> Bryan Davis Technical Engagement Wikimedia Foundation
> Principal Software Engineer Boise, ID USA
> [[m:User:BDavis_(WMF)]] irc: bd808
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