Post SMTP vs Site Mailer
Updated 11 Oct 2026. 23 features compared side by side.
SMTP and API mailer plugin with free email logs, fallback SMTP, failure alerts and a mobile app; Pro adds Microsoft 365, SES and tracking.
Elementor's hosted email sending service for WordPress (now listed as Email Deliverability). No SMTP setup, logs, resend and open tracking; 200 free emails.
Choose Post SMTP if…
- You need API mailer integrations and any SMTP server
- You also want Gmail & Google workspace and failure alerts
- You want the more complete feature set (90/100 vs 36/100)
- You want the lower entry price ($59.99/yr vs $228/yr)
Choose Site Mailer if…
- You need no paywalled mailers
Post SMTP includes 9 features that Site Mailer lacks, including Any SMTP server, API mailer integrations and Gmail & Google Workspace; Site Mailer has 1 that Post SMTP lacks, including No paywalled mailers. Both include 10 of the 23 features we track. 1 feature is not yet verified for one or both plugins.
At a glance
Feature comparison
Click a screenshot to see both plugins side by side.
Post SMTP Site MailerSending & mailers7/82/8
Other SMTP option connects to any SMTP server.
Sends only through Elementor's cloud service; you cannot enter your own SMTP host.
Core plugin includes API sockets for SendGrid, Mailgun, Brevo, Postmark, SparkPost, Mailjet and more.
No third-party provider connections; Elementor's own email API is the only mailer.
Gmail API with your own OAuth client is free; one-click Gmail setup needs Pro.
No Gmail or Google Workspace connection.
Office 365 connection needs Pro; Microsoft one-click setup is in Business.
No Microsoft 365 or Outlook connection.
Amazon SES is a Pro mailer, included from the Basic plan.
No Amazon SES integration.
Fallback SMTP takes over when the primary fails; Pro adds more connections.
Falls back to native wp_mail if the Elementor service errors (v1.2.2); no second provider.
No rule-based routing; extra connections act only as fallbacks.
Single sending service with no routing rules.
Three-step wizard: choose mailer, configure, send test email.
One-click connect plus a custom domain DNS wizard; test email is sent separately from settings.
Logs & monitoring7/75/7
Detailed log with status, errors, filters and print option in the free plugin.
Logs subject, recipient, source, status, opens and date for 30 days.
Resend individual emails from the log; bulk resend needs Professional.
Resend single or bulk failed emails; needs 'Save email content' enabled.
Report and tracking extension tracks opens only, not clicks; plan not specified.
Tracks opens and open rate; no click tracking.
Free alerts by email, Slack, Pushover, Chrome extension or app; Twilio and Teams are Pro.
Only quota and renewal notices in the admin; no alerts when sends fail.
Auto-retry a set number of times, with batching and quota scheduling.
No queue or automatic retry is documented; failed emails are resent manually.
Free weekly summary of totals and failures; Pro adds health reports and graphs.
Dashboard totals for sent, delivered, opened and failed; no charts or email summaries.
Free caps the number of stored log entries; day-based retention and attachments need Pro.
Logs are kept for a fixed 30 days; you can only choose whether email content is saved.
Email control3/42/4
Settings prevent plugins from changing the From email and From name.
Sender name, From address (with custom domain) and Reply-To apply to all outgoing emails.
No option to disable individual WordPress notification emails.
No options to disable individual WordPress or WooCommerce emails.
Run mode can log emails only, or ignore them, instead of delivering.
No option to block or simulate outgoing email.
Send Test Email tool plus an email tester with spam score checks.
Send a test email from General Settings; failure reasons appear in the log.
Security & admin3/42/4
Authentication credentials, including fallback SMTP, can be set as wp-config constants.
No provider keys stored; the site links to an Elementor account through a connect flow.
Multisite supported with global network settings in the free plugin.
Multisite support is not documented.
Microsoft 365, Amazon SES and Zoho mailers are Pro-only.
Same features in free, but sending is capped at 200 emails in total.
Documented action and filter hooks; constants for logging and auth.
No documented hooks, API or WP-CLI; only internal service-URL filters.
Statuses: Yes Pro Add-on Partial 3rd-party No ?
Pricing compared
Post SMTP Freemium
| Free | $0 |
|---|---|
| Free | Free per year, Unlimited |
| Basic | $59.99 per year, 1 site |
| Professional | $79.99 per year, 1 site |
| Business | $99.99 per year, 1 site |
Site Mailer Freemium
| Free | $0 |
|---|---|
| Free | Free one-off, 1 site |
| Elementor One | $228 per year, 1 site |
| Elementor One Agency | $540 per year, Unlimited |
Downloads trend
Post SMTP
19,475 downloads last week
Site Mailer
6,103 downloads last week
Verdict
Post SMTP scores higher on our feature checklist (90/100 against 36/100) and includes API mailer integrations, any SMTP server and Gmail & Google workspace that Site Mailer does not. Site Mailer still has the edge on no paywalled mailers. Paid plans start at $59.99/yr for Post SMTP and $228/yr for Site Mailer. Check the features you rely on in the table below before deciding.
Biggest differences
Post SMTP: included. Site Mailer: not included. Core plugin includes API sockets for SendGrid, Mailgun, Brevo, Postmark, SparkPost, Mailjet and more.
Post SMTP: included. Site Mailer: not included. Other SMTP option connects to any SMTP server.
Post SMTP: included. Site Mailer: not included. Gmail API with your own OAuth client is free; one-click Gmail setup needs Pro.
Post SMTP: included. Site Mailer: not included. Free alerts by email, Slack, Pushover, Chrome extension or app; Twilio and Teams are Pro.
Post SMTP: paid version (Basic). Site Mailer: not included. Office 365 connection needs Pro; Microsoft one-click setup is in Business.
Post SMTP: paid version (Basic). Site Mailer: not included. Amazon SES is a Pro mailer, included from the Basic plan.
Written from the feature, pricing and install data on this page, not from hands-on testing. How we compare.
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FAQ
Which is better, Post SMTP or Site Mailer?
Post SMTP scores higher on our feature checklist (90/100 against 36/100) and includes API mailer integrations, any SMTP server and Gmail & Google workspace that Site Mailer does not. Site Mailer still has the edge on no paywalled mailers. Paid plans start at $59.99/yr for Post SMTP and $228/yr for Site Mailer. Check the features you rely on in the table below before deciding.
Which has more features?
Post SMTP includes 20 of the 23 features we track, against 11 for Site Mailer. Feature count is only part of the picture; check which of the differences matter to you.
Is Post SMTP free?
Post SMTP has a free version on WordPress.org. Paid plans start at $59.99/yr.
Is Site Mailer free?
Site Mailer has a free version on WordPress.org. Paid plans start at $228/yr.
Feature data last changed 11 Oct 2026. Spotted something wrong? Suggest an edit to Post SMTP or Site Mailer. Some links are affiliate links. We may earn a commission at no cost to you; it never affects our data or rankings.