NickTheGreek 160 Report post Posted August 17, 2018 from cPanel University https://support.google.com/mail/answer/81126?hl=en http://www.ietf.org/rfc/rfc2505.txt https://help.yahoo.com/kb/SLN3435.html Quote Share this post Link to post Share on other sites
NickTheGreek 160 Report post Posted August 17, 2018 https://postmaster.live.com/snds/ https://sendersupport.olc.protection.outlook.com/snds/JMRP.aspx Quote Share this post Link to post Share on other sites
