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King SMTP – Email Log & Delivery

v0.4.9

by KingSMTP · updated 3 months ago

Free SMTP and Email Log plugin for WordPress. Connect any SMTP provider, log every email, get failure alerts. Bitcoin SMTP.

bitcoin smtpemail loggmail smtpsendgrid smtpwordpress smtp
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#25,522
Up7 vs yesterday
Active installs (est.)
≈ 26
20+ reported · High
Total downloads
4.4K
4,410 all-time
Rating
–
0 reviews
Support resolved
–
0 of 0 threads, last 2 months
Growing·Downloads +66.7% (30d)·Toward 30+ · ETA unknown

King SMTP at a glance

King SMTP is a WordPress plugin by KingSMTP with 20+ active installs, the #25,522 most popular plugin on WordPress.org. On a typical day it’s downloaded about 4 times, 67% more than the month before. It has no reviews yet. Version 0.4.9 came out on Aug 3, 2026 and is tested up to WordPress 6.9.11. Among the 5 plugins tagged “sendgrid smtp”, it ranks #4. It was first released in 2020.

Chart time range

Applies to every chart below. History from Oct 10, 2026, 31 days.

Showing the last 30 days. Full history comes with any paid plan.See plans

Downloads over time

Download stats

90 downloads · the last 30 days

Downloads over time
King SMTP Compare series
Downloads over time: 19 days across 1 series.5Oct 10Oct 13Oct 16Oct 19Oct 22Oct 25Oct 28
View as table
DateKing SMTP
Oct 28, 20262
Oct 27, 20263
Oct 26, 20266
Oct 25, 20262
Oct 24, 20265
Oct 23, 20265
Oct 22, 20266
Oct 21, 20267
Oct 20, 20263
Oct 19, 20269
Oct 18, 20263
Oct 17, 20263
Oct 16, 20265
Oct 15, 20263
Oct 14, 20268
Oct 13, 20264
Oct 12, 20264
Oct 11, 20264
Oct 10, 20268

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 26 · -3.7% in the last 30 days

Estimated installs
Estimated installs: 13 days across 1 series.252627Oct 27Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 6.9.11
View as table
DateEstimated installs
Nov 9, 202626
Nov 8, 202626
Nov 7, 202626
Nov 5, 202625
Nov 4, 202625
Nov 3, 202625
Nov 2, 202625
Nov 1, 202625
Oct 31, 202625
Oct 30, 202625
Oct 29, 202626
Oct 28, 202626
Oct 27, 202627

Rank over time

#25,522 · up 328 in the last 30 days

Popular rank
Popular rank: 12 days across 1 series.#25.5K#26K#26.5KOct 27Oct 29Oct 31Nov 2Nov 6Nov 9Oct 29, 2026: Tested up to 6.9.11
View as table
DateDaily snapshot
Nov 9, 2026#25,522
Nov 8, 2026#25,529
Nov 7, 2026#25,813
Nov 6, 2026#26,030
Nov 3, 2026#26,319
Nov 2, 2026#26,543
Nov 1, 2026#26,440
Oct 31, 2026#26,621
Oct 30, 2026#26,327
Oct 29, 2026#25,774
Oct 28, 2026#25,763
Oct 27, 2026#25,850

Growth %

Average -0.29% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 12 days across 1 series.0%Oct 28Oct 30Nov 1Nov 3Nov 5Nov 7Nov 9
View as table
DateGrowth
Nov 9, 20260.00%
Nov 8, 20260.00%
Nov 7, 2026+2.00%
Nov 5, 20260.00%
Nov 4, 20260.00%
Nov 3, 20260.00%
Nov 2, 20260.00%
Nov 1, 20260.00%
Oct 31, 20260.00%
Oct 30, 2026-3.85%
Oct 29, 20260.00%
Oct 28, 2026-3.70%

Active installs band

20+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 14 days across 1 series.192021Oct 27Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 6.9.11
View as table
DateDaily snapshot
Nov 9, 202620+
Nov 8, 202620+
Nov 7, 202620+
Nov 6, 202620+
Nov 5, 202620+
Nov 4, 202620+
Nov 3, 202620+
Nov 2, 202620+
Nov 1, 202620+
Oct 31, 202620+
Oct 30, 202620+
Oct 29, 202620+
Oct 28, 202620+
Oct 27, 202620+

Search rankings

Where it appears in WordPress.org search for the searches you track, checked every day.

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Change log

From our daily snapshot of WordPress.org
    • Tested up to 6.9.10 → 6.9.11

Versions in use

Share of active installs on each published version, from WordPress.org.

  • v0.4100%

Requirements & info

Version history
Version
0.4.9
Requires WordPress
3.3
Tested up to
6.9.11
Requires PHP
–
First released
Nov 25, 2020
Last updated
Aug 3, 2026
Releases, last 12 months
…

Questions about King SMTP

How many websites use King SMTP?

King SMTP is active on 20+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #25,522 most popular plugin on WordPress.org.

How many times has King SMTP been downloaded?

4,410 times in total since 2020. On a typical day it’s downloaded about 4 times. See download stats

When was King SMTP last updated?

Version 0.4.9 came out on Aug 3, 2026 (3 months ago).

Is King SMTP compatible with the latest WordPress?

King SMTP’s readme says it’s tested up to WordPress 6.9.11, while the current version is 7.1. That doesn’t mean it breaks, but its author hasn’t confirmed it works with the latest releases.

Is King SMTP still maintained?

Yes. Its last release was 3 months ago. No support threads were opened in the last two months.

What rating does King SMTP have?

No one has reviewed King SMTP on WordPress.org yet.

What are the best alternatives to King SMTP?

The plugins most like King SMTP, by the tags they share, are GoSMTP (500K+), Post SMTP (300K+) and Solid Mail (60K+). Compare all alternatives

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
King SMTP
Suggested:
Metric
King SMTP
Estimated installs≈ 26
Reported installs20+
Rating–
Reviews0
Total downloads4.4K
AuthorKingSMTP
First releasedNov 25, 2020
Version0.4.9
Requires WP3.3
Requires PHP–
Last updatedAug 3, 2026

Alternatives to King SMTP

Compare all alternatives

Popular plugins with the same tags, the most in common first.

Side by side:King SMTP vs GoSMTPKing SMTP vs Post SMTPKing SMTP vs Solid Mail