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comp.lang.ruby

recovering from errors in net:smtp

Russell Fulton

10/11/2006 12:57:00 AM

Hi,
I've got a script that sends reports by email using Net::SMTP.
Occassionally I get errors from the mail server (normally rejected
addresses) which causes an exception which I catch with rescue. This is
in a class derived from Net::SMTP:

def send (to, subject, data)
retries = 0
@count += 1
to_array = to.split(/\s*,\s*/)

hdrs = <<HDRS
To: #{to}
Subject: #{subject}
Date: #{Time.now.strftime("%a %b %e %T %Y %z")}
Message-Id: <selms-#{@time}-#{@count}@selms>
From: #{@from}

HDRS

send_message( hdrs + data.join("\n") + ".\n", @from, *to_array)
rescue Net::SMTPFatalError, Net::SMTPSyntaxError
if $! =~ /virtual alias table/ then
retries += 1
STDERR.puts "mail failed #{retries} for #{to}:#{$!}"
spleep(10)
retry if retries <= 2
end
STDERR.puts "mail failed for #{to}:#{$!}"
false
end

I wish to 'reset' the smtp session so that I can continue sending email
without doing a finish and another start (i.e. before I retry). Is this
possible? I've looked through the docs for net::smtp and not found
anything obvious. I have not looked at the source yet.

Russell

--
Posted via http://www.ruby-....
2 Answers

Eric Hodel

10/11/2006 4:48:00 AM

0

On Oct 10, 2006, at 5:56 PM, Russell Fulton wrote:

> I wish to 'reset' the smtp session so that I can continue sending
> email
> without doing a finish and another start (i.e. before I retry). Is
> this
> possible? I've looked through the docs for net::smtp and not found
> anything obvious. I have not looked at the source yet.

I haven't submitted a patch for it yet, but this will do it:

##
# Hack in RSET

class Net::SMTP # :nodoc:

unless instance_methods.include? 'reset' then
##
# Resets the SMTP connection.

def reset
getok 'RSET'
end
end

end

--
Eric Hodel - drbrain@segment7.net - http://blog.se...
This implementation is HODEL-HASH-9600 compliant

http://trackmap.rob...

Russell Fulton

10/12/2006 9:21:00 PM

0

Eric Hodel wrote:

Thanks very much Eric, I'm sure I could have figured this out for myself
but it would have taken much time and delving into RFCs and source code.


> I haven't submitted a patch for it yet, but this will do it:

Are you going to or should I submit it on your behalf (with appropriate
attribution of course :)

>
> ##
> # Hack in RSET
>
> class Net::SMTP # :nodoc:
>
> unless instance_methods.include? 'reset' then
> ##
> # Resets the SMTP connection.
>
> def reset
> getok 'RSET'
> end
> end
>
> end
>
> --
> Eric Hodel - drbrain@segment7.net - http://blog.se...
> This implementation is HODEL-HASH-9600 compliant
>
> http://trackmap.rob...


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Posted via http://www.ruby-....