I just sent out an email and most of them are being returned with this message:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
travis********nmail.com
host submission.antispam.mailspamprotection.com [34.111.121.216]
SMTP error from remote mail server after end of data:
550 High probability of spam 1tdxP9-00000002yvr-16Zf
Before this I sent lots of emails around christmas with no problems - from beeswaxcandlesshop.com
(here is what I sent --- https://www.beeswaxcandleshop.com/component/acym/archive/86-valentines-day.html?userid=3163-I5b32Qv5rFIdcV&tmpl=component)