supershawn23@juno.com
    SMTP error from remote mail server after initial connection:
    host mx.dca.untd.com [64.136.44.37]: 550 Access denied...3ddbc37ab3eb9797ab036f2b23230e2f8f3e9f1363f797abcb13975aa75abaa73b3b373b5aefbb5aefefef...
  laurenalahar@comcast.net
    SMTP error from remote mail server after initial connection:
    host mx2.comcast.net [76.96.30.116]: 554 imta28.emeryville.ca.mail.comcast.net comcast 184.107.157.210 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to:
    http://help.comcast.net/content/faq/PTR
  droolinfoolin@comcast.net
    SMTP error from remote mail server after initial connection:
    host mx2.comcast.net [76.96.30.116]: 554 imta28.emeryville.ca.mail.comcast.net comcast 184.107.157.210 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to:
    http://help.comcast.net/content/faq/PTR
  6bengtsons@comcast.net
    SMTP error from remote mail server after initial connection:
    host mx2.comcast.net [76.96.30.116]: 554 imta28.emeryville.ca.mail.comcast.net comcast 184.107.157.210 Comcast requires that all mail servers must have a PTR record with a valid Reverse DNS entry. Currently your mail server does not fill that requirement. For more information, refer to:
    http://help.comcast.net/content/faq/PTR