1
WP Mail SMTP
Site owners who want the most guided SMTP setup and will pay for logging, alerts and backup sending.
95overall scoreDetails
Best WordPress SMTP & Email Delivery Plugins (2026)
SMTP and API mailers, Gmail and Microsoft 365 sign-in, email logs, failure alerts and backup connections: how the main WordPress email delivery plugins compare.
About SMTP & Email Delivery Plugins
WordPress sends password resets, form notifications, WooCommerce order emails and more using PHP mail by default, which many hosts restrict and many inboxes treat as spam. An SMTP plugin routes those emails through a proper email service, such as Gmail, Microsoft 365, Amazon SES, SendGrid or Brevo, so they are authenticated and actually arrive.
We compare the most popular WordPress SMTP and email delivery plugins, including WP Mail SMTP, FluentSMTP, Post SMTP, Easy WP SMTP, SureMail, Site Mailer, Solid Mail and Gmail SMTP. Each one is checked against 23 features covering sending and mailers, logs and monitoring, email control, and security and admin.
Every feature is marked as free, paid, add-on, partial or not offered, with a note and a link to the source. The ranking combines feature coverage with WordPress.org popularity and ratings.
The ranking
Overall score = 55% features, 20% popularity, 25% ratings. Filter by the features you need, or tick two plugins to compare them.
Must have
2
Easy WP SMTP
SendLayer users and long-time Easy WP SMTP sites that want a simple setup and will pay for logs, alerts and backup sending.
92overall scoreDetails
3
FluentSMTP
Sites and agencies that want full logging, fallback sending and Microsoft 365 or Amazon SES support at no cost.
89overall scoreDetails
4
Post SMTP
Sites that want free email logging, fallback SMTP and phone or browser failure alerts, with optional paid retries and Microsoft 365.
88overall scoreDetails
5
SureMail
Site owners who want a free SMTP plugin with failover, retries and resend, without any Pro upsell.
83overall scoreDetails
6
Solid Mail
Existing WP SMTP users or simple sites that want free From-address routing across SMTP providers.
56overall scoreDetails
7
Site Mailer
Elementor One subscribers who want transactional email to work without configuring SMTP.
51overall scoreDetails
8
Gmail SMTP
Small sites on Gmail or Google Workspace that want simple, OAuth-based transactional email.
43overall scoreDetails
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Pricing compared
Entry and top plans on the same billing period, plus any lifetime deal. Prices are list prices before discounts or tax.
| Plugin | Free version | Entry plan | Top plan | Lifetime | Paid plans |
|---|---|---|---|---|---|
| WP Mail SMTP |
Yes | $99/yrPro, 1 site | $449/yrAgency, 100 sites | — | 4 |
| Easy WP SMTP |
Yes | $99/yrBasic, 1 site | $599/yrElite, 50 sites | — | 4 |
| FluentSMTP |
Yes | Free only | — | — | — |
| Post SMTP |
Yes | $59.99/yrBasic, 1 site | $99.99/yrBusiness, 1 site | — | 3 |
| SureMail |
Yes | Free only | — | — | — |
| Solid Mail |
Yes | Free only | — | — | — |
| Site Mailer |
Yes | $228/yrElementor One, 1 site | $540/yrElementor One Agency, Unlimited | — | 2 |
| Gmail SMTP |
Yes | $39.99Email Logger add-on, Unlimited | — | $39.99Email Logger add-on, Unlimited | 2 |
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Full feature matrix
Every plugin against every feature. Scroll sideways on small screens.
| Feature | WP Mail SMTP | Easy WP SMTP | FluentSMTP | Post SMTP | SureMail | Solid Mail | Site Mailer | Gmail SMTP |
|---|---|---|---|---|---|---|---|---|
| Sending & mailers | ||||||||
| Any SMTP server | ||||||||
| API mailer integrations | ||||||||
| Gmail & Google Workspace | ||||||||
| Microsoft 365 / Outlook | ||||||||
| Amazon SES | ||||||||
| Backup connection | ||||||||
| Smart routing | ||||||||
| Setup wizard | ||||||||
| Logs & monitoring | ||||||||
| Email log | ||||||||
| Resend from the log | ||||||||
| Open & click tracking | ||||||||
| Failure alerts | ||||||||
| Automatic retry & queue | ||||||||
| Delivery reports | ||||||||
| Log retention & attachments | ||||||||
| Email control | ||||||||
| Force from name & address | ||||||||
| Turn WordPress emails on or off | ||||||||
| Stop sending / test mode | ||||||||
| Test email & diagnostics | ||||||||
| Security & admin | ||||||||
| Secure credential storage | ||||||||
| Multisite support | ||||||||
| No paywalled mailers | ||||||||
| Developer hooks & WP-CLI | ||||||||
Statuses: Yes Pro Add-on Partial 3rd-party No ?
Head-to-head comparisons
Easy WP SMTP/Site MailerFluentSMTP/WP Mail SMTPFluentSMTP/Site MailerFluentSMTP/Gmail SMTPPost SMTP/WP Mail SMTPEasy WP SMTP/Solid MailFluentSMTP/Post SMTPEasy WP SMTP/Gmail SMTPPost SMTP/SureMailPost SMTP/Site MailerPost SMTP/Solid MailGmail SMTP/Post SMTPEasy WP SMTP/Post SMTPEasy WP SMTP/WP Mail SMTPEasy WP SMTP/FluentSMTPEasy WP SMTP/SureMailSureMail/WP Mail SMTPSite Mailer/WP Mail SMTPSolid Mail/WP Mail SMTPGmail SMTP/WP Mail SMTPFluentSMTP/SureMailFluentSMTP/Solid MailGmail SMTP/SureMailGmail SMTP/Site MailerGmail SMTP/Solid MailSite Mailer/SureMailSolid Mail/SureMailSite Mailer/Solid Mail Buyer's guide
Pick the mailer first
The plugin is only the connector; deliverability comes from the email service behind it. Choose a provider that suits your volume (a transactional service such as Amazon SES, Postmark, SendGrid, Mailgun or Brevo, or your Google Workspace or Microsoft 365 account), set up SPF, DKIM and DMARC for your domain, then make sure the plugin has a native integration for that provider.
Free versus paid
Some plugins, such as FluentSMTP, include every mailer, logs and a backup connection for free. Others keep certain mailers (often Microsoft 365, Amazon SES or Zoho), email logs, resending or alerts in paid plans. Check the exact feature you need is in the plan you will use.
Logs and alerts
An email log lets you prove an order or form email was sent and resend it if needed. Failure alerts and a backup connection matter most for stores and membership sites, where a missed email means a support ticket or a lost sale.
Security
Prefer OAuth sign-in for Gmail and Microsoft 365, and keep API keys in wp-config.php constants where the plugin supports it, so credentials are not exposed in the database.
Staging and testing
The ability to stop all outgoing email is invaluable on staging sites, where you do not want real customers to receive test orders or notifications.
Browse by feature
Any SMTP server (6)
API mailer integrations (6)
Gmail & Google Workspace (6)
Microsoft 365 / Outlook (4)
Amazon SES (6)
Backup connection (7)
Smart routing (5)
Setup wizard (6)
Email log (8)
Resend from the log (6)
Open & click tracking (4)
Failure alerts (5)
Automatic retry & queue (5)
Delivery reports (6)
Log retention & attachments (7)
Force from name & address (8)
Turn WordPress emails on or off (2)
Stop sending / test mode (5)
Test email & diagnostics (8)
Secure credential storage (6)
Multisite support (4)
No paywalled mailers (5)
Developer hooks & WP-CLI (7)