Best letter-management plugins for WordPress
The most popular letter-management plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Persian Office Automation SaaS leads with 10+ active installs. All 1 plugins tagged “letter-management” 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.
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Top 1 letter-management plugins
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Persian Office Automation SaaSThe most installed letter-management plugin, with 10+ active installs. No reviews yet, updated 6 days ago.