I have set up a MAIL FROM domain with Amazon SES by following their instructions: https://docs.aws.amazon.com/ses/latest/DeveloperGuide/mail-from.html
They have verified that the DNS records were set correctly.
However when I send an email using SMTP and the server being: email-smtp.eu-west-1.amazonaws.com I get the following error on mail-tester.com: HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different
So I tried sending it using the subdomain (MAIL FROM domain) for which I created an MX record and a TXT record, but the email software (Sendblaster) says that the server cannot be found. Do I need to also set up an A record for this to work? Or is the solution elsewhere?