Best relay plugins for WordPress
The most popular relay plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Redis Object Cache leads with 500K+ active installs, ahead of Synalysis Blog Importer for Nostr (fewer than 10) and Emercury SMTP Mail (fewer than 10). All 3 plugins tagged “relay” 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 3 relay plugins
- 1.
Redis Object CacheThe most installed relay plugin, with 500K+ active installs. Rated 4.5 from 179 reviews, updated 1 month ago.
- 2.
Synalysis Blog Importer for NostrFewer than 10 active installs. No reviews yet, updated 6 months ago. Tested only up to WordPress 6.9.11.
- 3.
Emercury SMTP MailFewer than 10 active installs. No reviews yet, updated 9 months ago. Tested only up to WordPress 6.9.11.
All 3 plugins tagged “relay”
Redis Object Cache
Up in the last 7 days:3#120by Till Krüss1 month ago
A persistent object cache backend powered by Redis®¹. Supports Predis, PhpRedis, Relay, replication, sentinels, clustering and WP-CLI.
- Installs
- 500K+
- Rating
- 4.5(179)
- Downloads
- 13.2K/day
Synalysis Blog Importer for Nostr
#67,351by synalysis6 months ago
Imports NIP-23 long-form articles from configured relays into WordPress. Not affiliated with the Nostr protocol, WordPress, or relay operators.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Emercury SMTP Mail
Down in the last 7 days:16,344#70,271by Emercury10 months ago
Converts WordPress into a reliable SMTP mail sender with secure relay settings.
- Installs
- <10
- Rating
- –
- Downloads
- 2/day