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#670 by installs

Solid Mail – SMTP email and logging made by SolidWP

by SolidWPVersion 3.0.0

Email deliverability made SOLID. Connect to your chosen email provider with an intuitive set-it-and-forget-it SMTP plugin.

Active installs
60,000+
#670 of 1,000
Downloads, all time
1.2M
1,226,302
Downloads, 30 days
5.8K
1.4K in the last 7
Rating
4.2 / 5
52 reviews
Last updated
6 months ago
May 12, 2026
Version
3.0.0
31 releases

Upkeep and compatibility

Last updatedMay 12, 2026Updated in the last year
Tested up toWordPress 6.9.11Older than WordPress 7.1.4, the current release
Needs WordPress6.4 or newer
Needs PHP7.4 or newer
First publishedNovember 10, 2012
Support, last two months0 of 1 threads resolved (0%)

Reviews

4.2 / 5 from 52 reviews

Reviews by star rating
5 stars41
4 stars1
3 stars0
2 stars1
1 star9

Downloads, last 30 days

Low 83 a dayHigh 504 a day

What the author says it does

Your WordPress website is sending emails out daily, but are your users and visitors receiving them? When it comes to ensuring email deliverability, lean on a proven equation: SMTP plugin + email service provider = success. Solid Mail is an easy-to-use, set-it-and-forget-it SMTP plugin that will help you stop worrying about email deliverability.

❓How does Solid Mail Help You Implement SMTP Email on your website?

Solid Mail makes connecting to many popular SMTP services straightforward and clear. Solid Mail currently supports the following Email Service Providers (ESPs):

  • Sendgrid
  • MailGun
  • Brevo (formally Sendinblue)
  • Amazon SES
  • Postmark
  • Manual connection (connect to any ESP)

Enjoy complete flexibility and reliability in email delivery. Set up multiple connections to send emails via different Email Service Providers according to the From: address, and choose a fallback connection to ensure messages are sent even if a connection fails or the address doesn’t match an existing connection.

Learn more about transactional email services for your WordPress website here.

🤔Why Should You Use an SMTP Plugin for Your WordPress Website Instead of the Native PHP Mail?

The opening of the plugin's own description. The full text, installation notes and changelog are on its WordPress.org page.

Questions the author answers

What SMTP services does Solid Mail support?

Currently, Solid Mail supports the following SMTP services:

* SendGrid

* MailGun

* Brevo (formally Sendinblue)

* Amazon SES

* Postmark

* Manual connection (connect to any SMTP email service provider)

We are considering additional SMTP services for our roadmap. If you have specific recommendations that you’d like to see added, contact us here.

I need help troubleshooting an email problem with Solid Mail, where can I get support?

Solid Mail is 100% free, and we provide top-notch technical support for all users here.

What email services does the Solid Mail SMTP Plugin support?

✉️SendGrid ✉️

When you want to send transactional and marketing emails at scale, SendGrid from Twilio is a preferred option for millions of users worldwide. SendGrid offers free and paid options, lets you get started quickly, and is well suited for both large and small businesses.

📧MailGun 📧

How to Send Email Using a SMTP service with WordPress?

To configure your WordPress website to send email using any SMTP email provider with Solid Mail, follow these steps:

  • Navigate to “Solid Mail > Connections
  • Select the appropriate email provider from the dropdown
  • Add the credentials for that email provider.

For more information, see the documentation.

Can I create multiple connections using different SMTP services?

Yes! You can create multiple connections, each using a different service, and send mail via those connections based on the From: address of the message being sent.

This is especially useful if you’d like to use different services to send mail for various operational needs i.e., configure a connection to handle transactional emails sent from your WooCommerce store address, another for WordPress account-related…

What happens if one of my connections has an issue?

For peace of mind, you can set a Default connection as your site’s fallback.

If a connection fails or an email is sent from an address without a matching connection, it will be automatically sent through the Default connection for a second delivery attempt.

Latest changelog entry

[3.0.0] 2026-05-11

  • Tweak – Updated branding from SolidWP to Kadence.
  • Tweak – Updated branding references from StellarWP to Nexcess.

Screenshots

First 4 of 6, from WordPress.org.

Tagged

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Where this page's numbers come from

Read from the WordPress.org plugin API on , when WordPress 7.1.4 was the current release. WordPress.org rounds active installs into buckets. These are the directory's figures, not my verdict, and I haven't tested this plugin. The author takes donations at their donate page.