What do you want to ask?
Testing this solution for email marketing and cold emails, domain is configured and all records updated in DNS MX, TXT. When outbound server uses 25 and it goes undelivered, can we change this postfix to use 465/587 ? in-place of using SMTP relay service which shows the relayed email ID saying email is on-behalf of.
What do you want to ask?
Testing this solution for email marketing and cold emails, domain is configured and all records updated in DNS MX, TXT. When outbound server uses 25 and it goes undelivered, can we change this postfix to use 465/587 ? in-place of using SMTP relay service which shows the relayed email ID saying email is on-behalf of.