WP Mail SMTP SendGrid Edition vs Simple SMTP by Maileroo

Head-to-head on the signals that matter, from the public WordPress.org data.

Simple SMTP by Maileroo is the only plugin here with enough reviews to score.

WP Mail SMTP SendGrid Edition

by FolioVision

Health D48

Simple SMTP by Maileroo

by Areeb Majeed

Health B78

Active-install trajectory

WP Mail SMTP SendGrid Edition moved up one install band, 500+ to 600+; Simple SMTP by Maileroo moved up one install band, 700+ to 800+. That's a single step across the whole window, so there's no trajectory to draw. The download trend below moves daily.

Metric	WP Mail SMTP SendGrid Edition	Simple SMTP by Maileroo
Active installs Modeled from the public "N+" band and recent downloads.	600–700	800–900 ✓
Active installs, change over ~6 months Compares the public install bands. One band step shows as the band change, not a percentage.	+20% ✓	700+ → 800+
Overall health	—	B · 78 ✓
Maintenance How recently the plugin was updated.	20/100	82/100 ✓
Rating quality Volume-adjusted review quality.	—	80/100 ✓
Support Share of forum threads marked resolved.	—	70/100 ✓
Rating (weighted for review count)	—	4.2★ ✓
Reviews	0	4 ✓
Ranking optimization How well the listing is tuned to rank on wp.org.	57/100	85/100 ✓
Removal risk Maintenance signals that precede a wp.org closure. Not an official status.	Elevated	Low ✓
Last updated	2.3y ago	7mo ago ✓
Downloads, last 30d	286	304 ✓
Download momentum, last 30d vs prior 30d Dips that follow a release spike are normal: wp.org counts every update as a download, so the weeks after a release run lower.	+17%	+66%
Install conversion Active installs over lifetime downloads. Downloads include every update, so older and more frequently released plugins read lower.	7.0%	8.7% ✓
Category	Email & Marketing	Email & Marketing

✓ marks the stronger plugin on each row. Rows where they're level show no marker.

Release activity

WP Mail SMTP SendGrid EditionSimple SMTP by Maileroo

7-day average daily downloads. Downloads spike for about a week after each release as the install base re-downloads, so read this as release cadence, not growth.