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Knowledgebase: eMail > SmarterMail
550 Access denied - Invalid HELO name - SmarterMail
Posted by on 23 February 2013 05:09 PM
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When you send an email through SmarterMail, you receive following error in bounc back email. Remote host said: 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1) Soltution:
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