I did follow the directions from the knowledge base, I tried ot delete the extra MX record and received the following error message,
A little more research finds this from this link https://infinityfree.net/support/mx-records-cannot-be-altered-on-subdomains/
The MX record byetcluster.com shows as part of the sender of verification/notification emails in the raw message from my site, yet it isn’t supposed to be part of anything concerning emails. Small cut and paste of a raw message follows,
The mail system
[email protected]: host al-ip4-mx-vip1.prodigy.net[144.160.235.143] said: 553
5.3.0 alph775 DNSBL:ATTRBL 521< 185.27.134.28 >_is_blocked.For assistance
forward this error to [email protected] (in reply to MAIL FROM
command)
–8326C3120CBC.1581979377/sendmail.free.byetcluster.com
Content-Description: Delivery report
Content-Type: message/delivery-status
Reporting-MTA: dns; sendmail.free.byetcluster.com
X-Postfix-Queue-ID: 8326C3120CBC
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Tue, 18 Feb 2020 01:42:56 +0300 (MSK)
See this topic Email from forum undelivered, return to sender The forum/site email is ONLY being used for registration/reply notification and is being refused by the recipient, returned as not delivered.