>>>>> On Wed, 12 Mar 2008 07:52:50 -0400, "David Golden" <[EMAIL PROTECTED]> 
>>>>> said:

  > On Wed, Mar 12, 2008 at 5:44 AM, Kidney Bingos <[EMAIL PROTECTED]> wrote:
 >> I did experience problems in the past using my usual mail_host -> ISP smart 
 >> relay
 >> route of sending reports, which was why I wrote 
 >> POE::Component::Server::SimpleSMTP
 >> to punt all my reports through.

  > Interesting.  Maybe the volume of emails was considered spam from a
  > compromised machine and got outbound filtered by the ISP.  (Reminds me
  > why I shouldn't switch from my expensive home DSL company with the
  > wide open TOS.)

IIRC, the following two lines in my sendmail.mc solved all my delivery
problems:

define(`SMTP_MAILER_MAXMSGS', 1)dnl
define(`RELAY_MAILER_MAXMSGS', 1)dnl


Which means in other words: never be tempted to reuse an existing TCP
connection for another email.

-- 
andreas

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