I'm looking for a free SMTP server with TLS support for testing. I tried using Gmail, but my account got disabled the moment I tried sending an email from a Python script.

  • Did you try to bulk-mail, or anything resembling spam? I use my Gmail account occasionally from a PHP script and have not experienced any blockages. Aug 29 '11 at 7:28
  • Nope, just one sender.
    – Srikanth
    Aug 29 '11 at 9:06
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    Are you looking for a program or a hosted service?
    – user1686
    Aug 29 '11 at 9:16
  • Which Operating System are you using? (Add that answer to your question and I'll upvote your question.) P.S.: I provided an answer that applies to MS-Windows just in case that's the OS you're using. Aug 29 '11 at 9:17
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    Thank you so much, Randolf. It worked like a charm. I would have have liked a Linux software, but Windows is just fine.
    – Srikanth
    Aug 30 '11 at 11:46

If you're using the Windows Operating System (the question doesn't specify which OS is being used), then the Mercury Mail Server by David Harris should meet your needs:

Mercury Mail Server by David Harris

enter image description here

  • 1
    +1 for courier. Its underrated, and a snap to administer
    – Journeyman Geek
    Aug 29 '11 at 9:26

That would be most of them. courier, exim, sendmail, etc.

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