Re: [msmtp-users] pre-connect?

[John Eikenberry <jae@zh...>]

Jim Pryor wrote:

> On Sat, May 22, 2010 at 01:50:36PM -0400, John Eikenberry wrote:
> > I currently use esmtp's preconnect functionality to ssh to my work's mail
> > server and send out email. They use SPF so I can't spoof and they don't
> > support remote SMTP connections. The ssh tunnel works fine and I have been
> > happy with it. But now I'm looking to switch MTAs due to unrelated
> > problems.
> > 
> > msmtp looks almost perfect except for the lack of pre-connect like
> > functionality to establish the ssh tunnel for the smtp connection. I can't
> > seem to find it in the docs but thought I'd check here in case I missed it
> > or if someone had some alternative approach they could suggest.
> 
> There may be a better way than this, but if nothing emerges, what's
> wrong with something like this...
> 
> #!/bin/bash
> 
> ssh -set -up -your -tunnel &
> SSH_PID=$!
> sleep 1     # I'm sure there's a better way...
> if [ -d /proc/$SSH_PID ]; then
>     # ...but at this point, we can assume the ssh tunnel is up
>     # and we know the PID of its process, so...
>     msmtp "$@" # receives stdin
>     killall $SSH_PID
> fi
 
Yeah, I'd thought of something like that. Was hoping for something better.
BTW you don't need the sleep if you use ssh with '-f' which forks _after_
the ssh connection has been established, but before running the command.
You just pass it 'sleep 5' as the command to keep the connection open long
enough to kick off msmtp.

You can also just put that ssh command in the if test and don't have to
worry about killing it as it will go away automatically after 5 seconds or
after msmtp finishes (an open socket over the tunnel keeps it open).

-- 

John Eikenberry
[jae@... - http://zhar.net]
[PGP public key @ http://zhar.net/jae_at_zhar_net.gpg]
______________________________________________________________
"Perfection is attained, not when no more can be added, but when no more 
 can be removed." -- Antoine de Saint-Exupery

Re: [msmtp-users] pre-connect?

[Jim Pryor <lists+msmtp@ji...>]

On Sat, May 22, 2010 at 01:50:36PM -0400, John Eikenberry wrote:
> I currently use esmtp's preconnect functionality to ssh to my work's mail
> server and send out email. They use SPF so I can't spoof and they don't
> support remote SMTP connections. The ssh tunnel works fine and I have been
> happy with it. But now I'm looking to switch MTAs due to unrelated
> problems.
> 
> msmtp looks almost perfect except for the lack of pre-connect like
> functionality to establish the ssh tunnel for the smtp connection. I can't
> seem to find it in the docs but thought I'd check here in case I missed it
> or if someone had some alternative approach they could suggest.

There may be a better way than this, but if nothing emerges, what's
wrong with something like this...

#!/bin/bash

ssh -set -up -your -tunnel &
SSH_PID=$!
sleep 1     # I'm sure there's a better way...
if [ -d /proc/$SSH_PID ]; then
    # ...but at this point, we can assume the ssh tunnel is up
    # and we know the PID of its process, so...
    msmtp "$@" # receives stdin
    killall $SSH_PID
fi


-- 
Jim Pryor
profjim@...

[msmtp-users] pre-connect?

[John Eikenberry <jae@zh...>]

I currently use esmtp's preconnect functionality to ssh to my work's mail
server and send out email. They use SPF so I can't spoof and they don't
support remote SMTP connections. The ssh tunnel works fine and I have been
happy with it. But now I'm looking to switch MTAs due to unrelated
problems.

msmtp looks almost perfect except for the lack of pre-connect like
functionality to establish the ssh tunnel for the smtp connection. I can't
seem to find it in the docs but thought I'd check here in case I missed it
or if someone had some alternative approach they could suggest.

Thanks.

-- 

John Eikenberry
[jae@... - http://zhar.net]
[PGP public key @ http://zhar.net/jae_at_zhar_net.gpg]
______________________________________________________________
"Perfection is attained, not when no more can be added, but when no more 
 can be removed." -- Antoine de Saint-Exupery

Re: [msmtp-users] Mail delivered twice

[Robert Thorsby <robert@th...>]

On 11/05/10 19:34:39, Andreas Krauß wrote:
> Today I have forwarded a blocked email to my mail-account.
> 
> msmtp -host=localhost -port=10025 -protocol=smtp -read-envelope-from 
> mymail@... <var/lib/amavis/virusmails/virus-56hlCeBKv9zn
> 
> The email was delivered to the intended recipient and to me. What did
> I do wrong?

G'day Andreas,

If the first paragraph of the blocked email (ie, all down to the first 
blank line) contained only headers then msmtp (and all properly 
functioning MTAs) will treat that paragraph as headers or additional 
headers. My guess is that is what happened -- the first paragraph 
contained only headers (including one or more "To:" headers) so msmtp 
treated them accordingly and sent off the mail to every "To:" addressee 
(including the original addressee).

NOTE: email protocol allows for multiple addressees to be included as 
individual "To:" addressees, each one on a separate line.

If you wish to include a blocked email in its unaltered entirety as the 
message body then you should include some ordinary text (ie, non-header 
material) in a preceding paragraph in order to prevent the headers of 
the blocked email being treated as headers in the email wrapper.

Of course, the preferred way of handling the whole transaction is to 
include the blocked email as a mime attachment. That way you do not 
have to worry about whether the recipient's mail server (and all the 
intermediate servers) follow the protocol correctly.

HTH,
Robert Thorsby
When I was young I used to think that money was the most important 
thing in life; now that I am old, I know it is. -- Oscar Wilde

[msmtp-users] Mail delivered twice

[Andreas Krauß <kraussml@hd...>]

Hi,

I am new to this Mailling list and have just a question :D

We use msmtp to forward eMails blocked by AMaViS. The forwarding to the 
original receiver is working properly.

Today I have forwarded a blocked email to my mail-account.

msmtp -host=localhost -port=10025 -protocol=smtp -read-envelope-from 
mymail@... <var/lib/amavis/virusmails/virus-56hlCeBKv9zn

The email was delivered to the intended recipient and to me. What did I 
do wrong?

Many greetings and thanks for your help ...

Andreas

HDPnet GmbH
Erwin-Rohde-Str. 18
69120 Heidelberg

Geschaeftsfuehrer: Marc Hermann
Registergericht: Mannheim HRB 337012
Sitz: Heidelberg
Umsatzsteuer ID Nr.: DE 211 257 470 

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