The A record is only required if your account is set up with new (and not existing) dedicated IP addresses. If you are sending entirely from Maropost’s shared IP address pool, then disregard this section.
The A record is a type of DNS record, that tells the world what IP address your domain belongs to. It should be a subdomain of your From domain. You will need one subdomain for each dedicated IP address that Maropost has assigned to you. E.g., if your From domain is “example.com” (replace with your actual From domain in practice) and you have two dedicated IP addresses, then you will need two subdomains of “example.com”, such as: mta1.example.com and mta2.example.com.
📋Note: Remember to replace "example.com" with your actual domain.
Maropost will need to know exactly what subdomains you have assigned and which ones point to which IP address, so we can set up the corresponding PTR records. The A records and PTR records must match, as this is a general industry requirement for sending email.
Notify your Customer Success Manager as soon as you have set up your A record. Be sure to specify which subdomain you have assigned to which IP Address so that Maropost can set up the proper PTR records.