Hi Support Team,
We are using the CPanel platform and we encountered the issue of not receiving emails from some IP's addresses.
Basically, we are trying to launch an e-commerce web platform soon and there are several text-based forms that are linked to our domain's emails vis sendgrid's DNS. Thus, we tested sending test messages on huge number of times. Initially, most of them were unsuccessful due to sender verification problems, then we managed to fine tuned the DNS settings. Now it seems the verification problem is solved instead the only error now are along the lines of
'JunkMail rejected - xtrwkkxd.outbound-mail.sendgrid.net [167.89.17.173]:58332 is in an RBL: Blocked - see https://www.spamcop.net/bl.shtml?167.89.17.173"
Other IP addresses are
50.31.49.42
167.89.12.138
50.31.49.41
spam reasonings were:
"Causes of listing
System has sent mail to SpamCop spam traps in the past week (spam traps are secret, no reports or evidence are provided by SpamCop)
SpamCop users have reported system as a source of spam about 20 times in the past week"
Please assist us to unblock those IP addresses. Thank you.