Best 20+ Tools for Software Engineers in 2025

Listmonk is an email marketing platform that you install and run on your own server. Unlike cloud services such as Mailchimp, you download and host it yourself, which means you own all your data and pay no monthly fees.

turboSMTP is an email relay service that acts as a bridge between your email program and your recipients. When you send an email through turboSMTP, it goes through their secure servers which have good relationships with internet providers worldwide.

SMTP.com is an email delivery platform that sends your business emails through their servers instead of your own. This means better delivery rates because they maintain good relationships with email providers and follow all the technical rules needed for emails to land in inboxes.

Loops is an email sending platform made for software companies. It lets you create and send three types of emails from one dashboard: campaigns (one-time announcements), loops (automated sequences), and transactional emails (password resets, receipts).

Amazon SES is a service that sends and receives emails for your business through the internet. Instead of running your own email server, you use Amazon's system to handle everything. You can send marketing campaigns, order updates, password resets, or any other emails your application needs.

Postmark is an email delivery service that sends your automated emails using modern technology. You can connect it to your website or app through their API or SMTP settings, and it handles the rest. Unlike regular email services, Postmark specializes in transactional emails - the important messages your customers expect right away.

SMTP2Go is a tool that sends your emails through its secure servers instead of your regular email system. This helps avoid problems like emails going to spam or getting blocked by internet providers.

SENDUNE is a tool that connects to your Amazon Web Services account to send emails and text messages. You can send marketing emails to customers, important business messages like password resets, and text messages all from one place.

SendGrid is a complete email delivery system that works in the cloud. You can use it in two ways: through an API for automatic emails from your website or app, or through a user interface for creating marketing campaigns.

MailerSend is a cloud-based email service that focuses on sending emails automatically from your apps or websites. Unlike regular email services for marketing campaigns, MailerSend specializes in sending individual messages triggered by user actions.