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    Do you know how to contact Gmail postmasters to understand why "421-4.7.28 unsolicited mail originating from your IP address." ?

    Is it dedicated server? Are you the only one using that IP address?
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    Address shows as "invalid" in checker

    I've been using a business email address for 17 years: pkelly@eliantservices.com I lease a dedicated server and manage it and the mailserver function myself. I must have something set up wrong. According to various email checking websites, my address is either "Unknown" or "Invalid." If any...
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    AT&T & Yahoo - Your customers are not receiving their email - 5.3.0 flph384 DNSBL RBL 521

    Is this happening again? I have a score of 84, and I am not listed on any blocklists. But my web clients can't communicate w/ ATT.NET or Prodigy users. Same outbound bounce: playenviro@ameritech.net SMTP error from remote mail server after MAIL FROM:<mike@playcareservice.com>...
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