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SendForce Mail SMTP Relay — WordPress Email Plugin

SendForce Mail SMTP Relay – SMTP and Email API

by Shipon Karmakar · WordPress.org page · Website

v1.0.39 Tested up to WP 7.1 PHP 7.4+

SendForce Mail SMTP Relay has 30+ active installs on WordPress.org and 1,728 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on August 28, 2026, tested up to WordPress 7.1.

SendForce Mail SMTP Relay at a glance

Active installs
30+
Total downloads
1,728
Downloads, last 30 days
–
available after 30 days of tracking
30-day growth
–
tracking since September 4, 2026

Is SendForce Mail SMTP Relay well maintained?

Support threads resolved
No open threads
nothing waiting on the WordPress.org forum
WordPress compatibility
Current
tested up to WordPress 7.1, the current release is 7.1

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Multiple connections with automatic fallback — configure a primary connection (e.g. Amazon SES) plus a fallback (e.g. Mailgun, SMTP, or PHP mail). If the…
  • Smart Routing Rules — send different emails through different connections based on rules you define. Match by recipient domain, recipient pattern (glob)…
  • One-click provider presets — pre-filled host, port, encryption, and API endpoint for every supported provider. Just paste your API key or password
  • Email Log — every outgoing email logged with status, recipient, subject, headers, error message, and timestamp. Filter by status, search by keyword, filter by…
  • Email Queue with retry — queue mode prevents rate-limit errors and timeouts on bulk sends. Failed emails auto-retry on exponential backoff (5 min → 15 min → 45…
  • Email Test page — send a test email with live SMTP debug log output. Diagnose connection problems instantly
  • Failure alerts — push delivery failures to Telegram, Slack, Discord, Microsoft Teams, Google Chat, Pushover, or any custom webhook
  • Sender Identity override — force every email to use a custom From name and From address site-wide
  • Conflict detection — warns you if another SMTP plugin (WP Mail SMTP, FluentSMTP, Easy WP SMTP, Post SMTP, etc.) is active so you can deactivate it before…
  • Encrypted credential storage — SMTP passwords and API keys are encrypted at rest using AES-256-CBC with a dedicated per-site key, so they survive…
  • WP-CLI commands — wp sendforce test, wp sendforce queue process, wp sendforce log list, wp sendforce sysinfo
  • Developer hooks — sendforce_before_send, sendforce_after_send, sendforce_log_entry, sendforce_api_request, sendforce_api_response for extending the plugin…

SendForce Mail SMTP Relay reviews and ratings

2 reviews on WordPress.org, with the most recent ones as their authors posted them.

All reviews
5.0 out of 5

2 reviews

5★
2
4★
0
3★
0
2★
0
1★
0

  • Finally, No More Spam Folder Issues with PHP Mail!

    As a freelance web developer working with a marketing agency, I need to set up SMTP for every website I build. However, my clients aren't always ready to provide SMTP credentials, which forces me to fall back on PHP mail — and that almost always ends up sending emails straight to the spam folder. This plugin completely solved that problem. I can now use PHP Mail instead, and it works perfectly. Honestly, this is a game-changer for my workflow.

    Wyarej Ali

  • Its very easy and helpful plugin for SMTP mail for WordPress

    Its very easy and helpful plugin for SMTP mail for WordPress. I love this plugin and its really awesome plugin.

    adisweden

Details

Reliable SMTP and email-API delivery for WordPress, with email logging, queue, retry, smart routing and failure alerts.

The full description, screenshots and every review live on the WordPress.org page.

Rankings SendForce Mail SMTP Relay competes in

Tags

  • email
  • email log
  • gmail
  • outlook
  • smtp

More from Shipon Karmakar

Version
1.0.39
Last updated
Aug 28, 2026
First published
Apr 30, 2026
Requires WordPress
5.9
Tested up to
7.1
Requires PHP
7.4
Pricing
Free on WordPress.org

SendForce Mail SMTP Relay FAQ

What does SendForce Mail SMTP Relay do?

According to its WordPress.org readme, SendForce Mail SMTP Relay offers Multiple connections with automatic fallback — configure a primary connection (e.g. Amazon SES) plus a fallback (e.g. Mailgun, SMTP, or PHP mail). If the, Smart Routing Rules — send different emails through different connections based on rules you define. Match by recipient domain, recipient pattern (glob), One-click provider presets — pre-filled host, port, encryption, and API endpoint for every supported provider. Just paste your API key or password, Email Log — every outgoing email logged with status, recipient, subject, headers, error message, and timestamp. Filter by status, search by keyword, filter by and Email Queue with retry — queue mode prevents rate-limit errors and timeouts on bulk sends. Failed emails auto-retry on exponential backoff (5 min → 15 min → 45.

How many active installs does SendForce Mail SMTP Relay have?

WordPress.org reports 30+ active installs for SendForce Mail SMTP Relay as of September 7, 2026.

Is SendForce Mail SMTP Relay still maintained?

Yes. The last release was on August 28, 2026 and it is tested up to WordPress 7.1.

Is SendForce Mail SMTP Relay free?

SendForce Mail SMTP Relay is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.