63
Solid Mail – SMTP email and logging made by SolidWP
It sends your mail but might lose your credentials along the way.
HealthyDeclining
63/100
The plugin handles SMTP delivery well but has a history of security issues and broken updates.
Active installs
~75,000
our estimate · wp.org shows 70k+
Rating
4.2★
52 ratings
Trend · vs a year ago
-19%
Declining
267 → 218 installs/day
Downloads over time
real new installs per day · release spikes shown separately from the trend2025-04-302025-08-082025-11-162026-02-232026-06-03
organicrelease spikerelease tailorganic trend · 14d rolling median
Declining · -19% in the last year
267/day a year ago→218/day today
Reviews
what people actually saySolid Mail (formerly WP-SMTP) is a functional SMTP plugin with a straightforward setup, but it carries a troubled history of breaking updates, credential security concerns, and user distrust following its rebranding and ownership change.
What people like
- +Easy to configure and get working for basic SMTP email delivery×4
- +Works reliably once properly set up×3
- +UI and logging issues introduced in v2.0.0 were resolved by v2.1.2
Common complaints
- −A major update erased saved SMTP credentials with no warning, causing sites to silently stop sending emails for a week or more; developers denied responsibility (since April 2022)×2
- −Newer versions reportedly cause emails to land in spam, whereas older versions did not (since 1.2.7)
- −Version 2.0.0 rebranding broke the admin UI entirely — logs and settings were inaccessible (since 2.0.0)
- −Plugin previously stored SMTP credentials (login/password) in plain text in the WordPress database, a known security vulnerability linked to the Panama Papers breach×2
- −Rebranding to a commercial company raised concerns about data collection practices and a future move to a paid/premium model
- −Gmail OAuth/app-approval flow not supported, causing authentication failures with Google accounts
- −Missing a default Reply-To field option
Review trustMostly organic
- 4.20★Verified rating — holds steady vs the raw 4.20★
- 4%One-shot reviewers — most reviewers are active community members
- past spikeReview timing — up to 29% of all reviews landed in a single month
Reviews per month · 5★ vs lower
2023-11-172025-03-112026-06-04
5★ reviews1–4★ reviews
All-time ratings · 52 total
Latest reviews · 52 analyzed
- 2025-07-09★★★★★Plugin issues under PHP8.4h360
- 2025-07-08★★★★★I'm satisfied with version 1.2.7Hoang Nam
- 2024-11-01★★★★★Solid mail is supermaxim23
- 2024-10-30★★★★★Since the takeover from Soild Mail no UI visiblewfrank94
- 2024-09-18★★★★★Gone with the windWebCodePoet
- 2024-06-06★★★★★It's not working. I think it's google crap. Whend095614
- 2023-11-15★★★★★simply awesomezamaan
- 2022-07-01★★★★★ExcelenteAlex Molina Maranho
- 2022-04-27★★★★★Almost perfectswinggraphics
- 2022-04-27★★★★★Switching to Post SMTPm_disseny
Releases
recent versions from WordPress.org SVNAlternatives to Solid Mail
Top Email plugins, ranked by score.For developers & the curious
the raw signals behind the grade — none of this is on the friendly summary aboveDownload signals
Baselines are computed on organic days only — release spikes and their tails are excluded, so they're not inflated by the auto-update wave.
381
Baseline · median of last 7 organic days
216
Prior 7-day baseline
311
Floor · 25th percentile over 14 days
6,784
Mean release-day peak (30d)
365
Latest day · 2026-06-03(organic)
+76.4%
Week-over-week organic trend
Review signals
Concentration and drive-by metrics drive the review-burst and fake-review flags. 30–40% solo reviewers is normal; we only flag the extremes.
29%
Max month share · biggest single 30-day window
2.49
Distribution CV · <0.6 even, >1.5 bursty
79%
5★ share in analyzed sample
4%
Solo reviewers · only this one wp.org activity
—
Volume velocity · last 6mo vs prior 6mo
4.23 → 4.20★
Sample avg · raw → solo-filtered