in reply to sendmail blocked by some ISPs

Do you have an email account setup to receive mail bounces?

Chances are likely that those ISPs have determined you to be a spammer and have thus blacklisted your server.

See if you can't capture some of those bounce emails that are coming back (as they most assuredly are) and see what they have to say about your emails - some ISPs even give you a link to their policy, along with instructions on how to remove yourself from their blacklists (assuming you're a legitimate mailer, which in your case it sounds like you are).



--chargrill
s**lil*; $*=join'',sort split q**; s;.*;grr; &&s+(.(.)).+$2$1+; $; = qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)

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Re^2: sendmail blocked by some ISPs
by jck (Scribe) on Feb 04, 2007 at 02:17 UTC
    i do have an email account from which i am sending the emails, and nothing is bouncing back - that's what seems so strange.

      In that case I would recommend sending test emails to other accounts on other systems that don't bounce ( ;) ) and carefully inspect the "reply-to:" and "from:" headers to make sure they are what you think they are.

      I currently work for a company that regularly get determined to be a spammer (I really think we're not, honest!) and it's always a careful read of the bounces to determine who has us (and more importantly why we are) blocked.

      It's possible that by directly interfacing with sendmail that the "From:" header of your sent emails are showing up differently? Or perhaps you have email aliases (/etc/aliases) sending that mail to that account directly to /dev/null? Perhaps a .forward file you weren't aware of? Also try sending a test email to your bounce handling account to make sure you can receive at least that :)



      --chargrill
      s**lil*; $*=join'',sort split q**; s;.*;grr; &&s+(.(.)).+$2$1+; $; = qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)