Building a Postal SMTP server to send bulk emails is a good choice for email marketers. Postal is very powerful and backed by a large community of developers. It is an open-source mail server script written in JavaScript and Ruby. It can be used to build in-house SMTP servers just like Mailgun, Sendgrid, Mailchimp, etc. … Continue reading Build Postal SMTP Server & Send Bulk Emails Step by Step on Ubuntu 22.04