Postmark is a transactional bulk email administration provider that helps you propose, send, and observe your bulk emails. Kensuke Nagae @kyanny I’ve had a hard time organising an SMTP server for some tests reasons as a consequence of sender authentication. An SMTP server, often called an outgoing mail server, https://cyberattackai15777.spintheblog.com/27119158/smtp-server-an-overview