Post SMTP vs WPO365 | MICROSOFT 365 GRAPH MAILER
Two WordPress plugins head to head: ranking, active installs, downloads and ratings, from our daily tracking of the WordPress.org directory.
These aren’t all alternatives to each other — they do different jobs — so this page compares popularity only, not features.
At a glance
Post SMTP leads the WordPress.org popular list today at #162, ahead of WPO365 | MICROSOFT 365 GRAPH MAILER at #1,713. Over the last 7 days Post SMTP held its place and WPO365 | MICROSOFT 365 GRAPH MAILER climbed 13 places. Post SMTP has the largest install base, roughly 30× the next: 300K+ active installs against 10K+ for WPO365 | MICROSOFT 365 GRAPH MAILER. Ratings: Post SMTP 4.7★ from 525 and WPO365 | MICROSOFT 365 GRAPH MAILER 4.9★ from 39 reviews.
| Metric | Post SMTP | WPO365 | MICROSOFT 365 GRAPH MAILER |
|---|---|---|
| Popular rank today | #162 ▬ | #1,713 ▲ 13 |
| Active installs | 300K+ | 10K+ |
| Downloads, last 7 days | 21,211 | — |
| Rating | 4.7★ (525) | 4.9★ (39) |
| Last updated | Aug 25, 2026 | Sep 5, 2026 |
| Current version | 4.0.1 | 6.1 |
| Best rank on record | #161 | #1,712 |
| Days in the top 50 | 0 | 0 |
| On WordPress.org since | Oct 2017 | Feb 2022 |
Highlighted cells mark the strongest figure in each row. Rank and installs are from the latest WordPress.org capture; downloads are the last seven captured days.
Ranking history Lower is better
Active installs
Downloads per day
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Frequently asked questions
Which is more popular, Post SMTP or WPO365 | MICROSOFT 365 GRAPH MAILER?
By active installs, Post SMTP: 300K+ sites run it against 10K+ for WPO365 | MICROSOFT 365 GRAPH MAILER, according to WordPress.org figures captured on September 15, 2026.
Which ranks higher on WordPress.org, Post SMTP or WPO365 | MICROSOFT 365 GRAPH MAILER?
Post SMTP, at #162 on the WordPress.org popular plugins list today, with WPO365 | MICROSOFT 365 GRAPH MAILER at #1,713. The ranking reflects recent installs and moves daily, which is why this page shows the history rather than one snapshot.
Are Post SMTP or WPO365 | MICROSOFT 365 GRAPH MAILER alternatives to each other?
Not all of them. Some of these plugins do different jobs and many sites run more than one. This page compares their popularity, not their features.
Where do these numbers come from?
WordPress.org publishes each plugin’s active install count and its position on the popular list. This site records both every day, along with per-day downloads and ratings, so the charts above show how the plugins have moved over time rather than a single day.