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Hi, I am curently pursuing Master's in Computer Science from India. as i was working with Twisted Framework, a very powerful python framework, was not able to send email to rediffmail.com and yahoo mail server. The mail sent considered to be a SPAM,rejected by their server and entered in the records of www.spamhaus.org. But on the brighter side i successfully sent emails to cooltoad mail server as well as gmail server. previously i spent my time in configuring my mail server on my site and i found that my mail server was not announcing a proper HELO/EHLO. Also configured the server Authentication. Still am not able to send emails to these servers. it would be a great pleasure to hear a solution from twisted framework fine programmers. i am using a Apache JAMES mail server. Thanking you (ABHISHEK DEY)