PHP SMTP

Open-source PHP projects categorized as SMTP

Top 7 PHP SMTP Projects

  1. PHPMailer

    The classic email sending library for PHP

    Project mention: Enable OAuth2 (XOAUTH2) for Sending Emails Using Gmail Account in OJS 3 | dev.to | 2025-05-01
  2. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  3. Cypht

    Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)

  4. magento2-gmail-smtp-app

    Configure Magento 2 to send email using Google App, Gmail, Amazon Simple Email Service (SES), Microsoft Office365 and many other SMTP (Simple Mail Transfer Protocol) servers

  5. eventum

    Eventum Issue Tracking System

  6. WP_Mail

    Send Templated emails with WordPress

  7. post-to-email

    Supporting contact forms for static websites

  8. commie2

    commie 2.0 is a pastebin with line commenting support.

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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PHP SMTP related posts

  • Enable OAuth2 (XOAUTH2) for Sending Emails Using Gmail Account in OJS 3

    4 projects | dev.to | 1 May 2025
  • Deliver Emails Safely with PHP: A Guide to Using SMTP for Spam-Free Emails

    1 project | dev.to | 27 Sep 2024
  • Easy PHPMailer Tutorial: Build an Email System in No Time [2024] ✉🚀

    1 project | dev.to | 17 Jul 2024
  • What to use besides contact form?

    1 project | /r/webdev | 10 Dec 2023
  • Help submitting simple contact form with php

    1 project | /r/webdev | 30 Jun 2023
  • Klagemauer für Microsoft-Geschädigte?

    1 project | /r/de_EDV | 18 May 2023
  • Opinions on setting up email that integrates well with nextcloud?

    5 projects | /r/NextCloud | 6 May 2023
  • A note from our sponsor - SaaSHub
    www.saashub.com | 25 Jun 2025
    SaaSHub helps you find the best software and product alternatives Learn more →

Index

What are some of the best open-source SMTP projects in PHP? This list will help you:

# Project Stars
1 PHPMailer 21,541
2 Cypht 1,118
3 magento2-gmail-smtp-app 326
4 eventum 158
5 WP_Mail 92
6 post-to-email 18
7 commie2 10

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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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