Best spf plugins for WordPress
The most popular spf plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Deliverability leads with 700+ active installs, ahead of InboxAuth (30+) and Does My Email Work (10+). All 12 plugins tagged “SPF” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
Research this niche or see all plugins.
Top 10 spf plugins
- 1.
DeliverabilityThe most installed spf plugin, with 700+ active installs. Rated 4.2 from 15 reviews, last updated 1 year ago. Tested only up to WordPress 6.6.11.
- 2.
InboxAuth30+ active installs. No reviews yet, updated 4 weeks ago.
- 3.
Does My Email Work10+ active installs. No reviews yet, updated 4 months ago.
- 4.
Simple Picture Fancybox10+ active installs. No reviews yet, updated 5 months ago.
- 5.
Meser10 Email Auth CheckFewer than 10 active installs. Only 1 review so far, updated 1 month ago.
- 6.
TrustBeacon Email Delivery AuditorFewer than 10 active installs. No reviews yet, updated 3 weeks ago.
- 7.
DMARCREPORT Domain Auth CheckerFewer than 10 active installs. No reviews yet, updated 8 months ago. Tested only up to WordPress 6.9.11.
- 8.
InbxGuardFewer than 10 active installs. No reviews yet, updated 3 weeks ago.
- 9.
Tanichev Email Deliverability TesterFewer than 10 active installs. No reviews yet, updated 1 month ago.
- 10.
Mailwick Site AuditFewer than 10 active installs. No reviews yet, updated 2 weeks ago.
All 12 plugins tagged “SPF”
Deliverability
Down in the last 7 days:10#7,870by Top Deliverability1 year ago
Check and improve your Email Deliverability. Pass DMARC by DKIM-signing your emails without an external SMTP. Comply with Google & Yahoo requirements!
- Installs
- 700+
- Rating
- 4.2(15)
- Downloads
- 11/day
InboxAuth
Up in the last 7 days:1,542#24,067by WP Encryption1 month ago
Protect your domain's email against email spoofing. Discover who's sending as you, then generate SPF/DKIM/DMARC records to stop spoofing — s …
- Installs
- 30+
- Rating
- –
- Downloads
- 0/day
Does My Email Work
Up in the last 7 days:8#29,515by Valentin Bora4 months ago
Email deliverability test for WordPress. See if your emails reach the inbox or land in spam, and exactly what Gmail and Outlook receive.
- Installs
- 10+
- Rating
- –
- Downloads
- 0/day
Simple Picture Fancybox
Down in the last 7 days:2,942#37,849by Tom Baumgarten5 months ago
A simple plugin to display a fancybox. Light, efficient. Best for developers.
- Installs
- 10+
- Rating
- –
- Downloads
- 0/day
Meser10 Email Auth Check
Up in the last 7 days:23,244#50,196by meser101 month ago
Checks the SPF, DKIM and DMARC records of your domain and explains in plain language what is missing and why it matters.
- Installs
- <10
- Rating
- 5.0(1)
- Downloads
- 2/day
TrustBeacon Email Delivery Auditor
#55,531by fiatlux577521 days ago
Find public DNS and authentication problems that can affect WordPress email delivery, including MX, SPF, DKIM, and DMARC.
- Installs
- <10
- Rating
- –
- Downloads
- 3/day
DMARCREPORT Domain Auth Checker
Up in the last 7 days:7,650#61,525by DuoCircle LLC8 months ago
Check SPF, DMARC, BIMI, MTA-STS and TLS-RPT records for any domain. Embed email authentication checkers with a shortcode.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
InbxGuard
Down in the last 7 days:13,284#62,236by ezzymd22 days ago
Inspect email authentication and mail attempts with SPF, DKIM, DMARC diagnostics, privacy-conscious logs and WooCommerce support.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Tanichev Email Deliverability Tester
Up in the last 7 days:417#71,443by tanichev1 month ago
Find out if your site's emails reach the inbox or land in spam, and what to fix. Works with WooCommerce and any SMTP plugin.
- Installs
- <10
- Rating
- –
- Downloads
- 2/day
Mailwick Site Audit
Down in the last 7 days:21,992#71,594by spsaradellis19 days ago
A DMARC checker and SPF record check, plus SSL padlock, mixed content, updates, phone view and contact email, each fault explained in plain English.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
M Media Email Deliverability Inspector
Down in the last 7 days:10,217#72,887by mmediasoftwarelab5 months ago
Comprehensive email deliverability diagnostics tool - checks SPF, DKIM, DMARC, PTR, MX records, and SMTP configuration.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Elevoire Email Delivery Doctor
Down in the last 7 days:9,437#73,020by Elevoire2 months ago
Diagnose WordPress email problems with DNS, SMTP, blacklist, header, logging, and sender-reputation checks.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day