When I reply to craigslist posts, my message is rejected. It was working up until a couple of months ago.
This Message was undeliverable due to the following reason:
Each of the following recipients was rejected by a remote mail server. The reasons given by the server are included to help you determine why each recipient was rejected.
554 [CF0FE78E-6260-465B-BDBF-457A2E224BA8@mxi8a] orchardcreektc.com [68.114.190.26] Please setup matching DNS and rDNS records: http://www.craigslist.org/about/help/rdns_failure
<5kj5z-6525847826@comm.craigslist.org>
Please reply to <Postmaster@msg.strl.va.charter.net> if you feel this message to be in error.
Reporting-MTA: dns; mtaout001.msg.strl.va.charter.net Arrival-Date: Sat, 10 Mar 2018 15:57:45 -0600 Received-From-MTA: dns; impout002 (68.114.189.17)
Final-Recipient: RFC822; <5kj5z-6525847826@comm.craigslist.org> Action: failed Status: 5.2.0 Remote-MTA: dns; comm.craigslist.org
Wšykne wótegrona (1)
SMTP error 554 is one of the more vague error codes, but is typically caused by the receiving server seeing something in the From or To headers that it doesn't like. This can be caused by a spam trap identifying your machine as a relay, or as a machine not trusted to send mail from your domain. This may also be due to reverse DNS lookup not being properly set up.
You should talk to your email provider and/or hosting provider.