<p>Hi, I am Judy Long and my site is CateringPlease.com I sent out 500 marketing emails yesterday. First 250 went through just fine. I wait for one hour to sent out additional 250 email -- all 250 emails got returned due to MTA's poor reputation and blocked list. I tried to sent out after 2 hours later and also got returned again. I have no problem last few weeks and started to have this problem yesterday. If my IP is under blocked list, should all my first 250 mails also got returned? Why just the emails from 250 to 500 all got returned? Read below message for some of my returned emails:</p>
<p>A message that you sent could not be delivered to one or more of its recipients. This is a permanent error.&nbsp;</p>
<p>SMTP error from remote mail server after RCPT TO:: host ns.shelfspace.com [207.238.132.102]: 553 5.3.0 ... Blacklisted(abuseat)&nbsp;</p>
<p>SMTP error from remote mail server after initial connection: host smtp.secureserver.net [72.167.238.201]: 554-p3pismtp01-017.prod.phx3.secureserver.net 554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.&nbsp;</p>
<p>SMTP error from remote mail server after MAIL FROM: SIZE=190975: host starliteinc.com [192.220.32.190]: 553 sorry, your mailserver [173.205.127.123] is rejected by See http://www.spamhaus.org/SBL&nbsp;</p>
<p>SMTP error from remote mail server after initial connection: host mx1.biz.mail.yahoo.com [68.142.202.129]: 553 5.7.1 [BL21] Connections will not be accepted from 173.205.127.123, because the ip is in Spamhaus's list; see http://postmaster.yahoo.com/550-bl23.html</p>