Meow Mailer is a new free WordPress mailer plugin from Jordy Meow, the developer behind AI Engine, Meow Gallery, and Meow Analytics. It is the plugin to look at if the deciding factor for your site is a stated, permanent commitment to no paid tier and no email tracking. The vendor states the first commitment outright on its product page: “There is no Pro version. The log, the alerts, all sixteen providers: everything is free, and everything stays free.” The tracking commitment sits next to it: “Your recipients are not watched, and that will never become a paid feature.” Both are unusual enough in this category to be the reason a reader would pick this plugin over the more established options.
That is the framing. The plugin itself was listed on wordpress.org in July 2026 and stands at version 0.3.4 as of November 2026. It is a very small, very new entrant in a category dominated by far larger incumbents. Under the hood it does what any WordPress mailer plugin does: it takes over wp_mail() and hands every outgoing message to a provider you have configured, with a log, alerts, a fallback provider, and OAuth 2.0 for the three provider families where it matters (Gmail and Google Workspace; Microsoft 365 and Outlook; Zoho Mail).
For the WordPress operator reading this because the “no Pro, no tracking” line landed, Meow Mailer is worth trying if you also do not need per-sender routing and are comfortable running a pre-1.0 plugin with a small install base. For an operator who wants the same philosophy on a plugin with a far larger install base and a mature codebase, FluentSMTP covers most of the same ground. For a first-time mailer install on a single WordPress site, WP Mail SMTP still owns the setup-wizard advantage.
What ships in the plugin
The 0.3.4 readme lists sixteen transports: generic SMTP, eleven API providers (Mailgun, Brevo, SendGrid, Amazon SES, Postmark, SMTP2GO, Mailjet, Resend, MailerSend, Maileroo, ZeptoMail), three OAuth integrations covering Gmail with Google Workspace, Microsoft 365 with Outlook, and Zoho Mail, and an app-only Microsoft 365 connection that signs in with an Entra app registration and a certificate or client secret. Zoho Mail OAuth and the Maileroo and ZeptoMail APIs are the ones to note: FluentSMTP has no native connection for any of the three. Outside that count, 0.3.3 added WordPress (Server Mail), which sends through the site’s own server but keeps the plugin’s Sender settings, log, fallback, and test emails.
The feature most operators reach for first is the email log. Every send is recorded with recipient, subject, headers, body, attachment names, and delivery status, including the Cc, Bcc, and Reply-To rows that the smaller SMTP-only plugins in this category typically drop. Failed sends can be re-attempted from the log directly, one click. An option added in 0.2.7, off by default, stores the attachments as well, so a resend carries them. Its default settings keep them for 30 days and store nothing for an email whose attachments pass 2 MB. Around the log sit the pieces that decide what happens when a send does fail: a fallback provider that engages on primary-provider failure (WordPress’s own default wp_mail() path can serve as the fallback for a zero-setup safety net, at the cost of the lower deliverability that motivated installing the plugin in the first place), failure alerts by email, and webhook alerts to Slack, Discord, and Microsoft Teams. The fallback can be a second provider or, since 0.2.9, a second generic SMTP server. A Backup From address, new in 0.3.4, lets it send from an address authenticated on its own domain, with the original sender moved to Reply-To when the message has none. A weekly summary email rolls up delivery statistics for operators who prefer to review deliverability on a cadence rather than a per-incident push.
Setup and day-two operations get their own group. A one-click importer detects an existing WP Mail SMTP, Easy WP SMTP, or official Mailgun plugin configuration and lifts credentials across, reading the Mailgun plugin’s wp-config.php constants when they are set. Version 0.3.4 fixed a bug that copied the encrypted SMTP password from WP Mail SMTP and Easy WP SMTP instead of the password itself. That fix suggests an SMTP import made on an earlier version may be worth testing again. Once the domain is verified, the DNS auth checker reads how the chosen provider’s SPF include and DKIM records resolve from the receiver’s perspective. An offline mode captures every send to the log without transmitting it, which is the mode operators reach for on staging environments where the last thing anyone wants is a partially-configured plugin bcc’ing production customers on a data-refresh from prod. A background-send option returns the page request immediately and dispatches the send asynchronously, so mail-server latency does not extend page-load time. This is single-message backgrounding, not a persistent spool queue. On multisite, a Shared Settings mode on the main site applies one provider configuration to the entire network; the per-site logs stay per-site. The log itself exports to CSV and filters across dates, providers, statuses, and recipients.
Credential handling picks up the deployment-hardening features. Stored credentials can be encrypted, keyed off WordPress security keys, an option added in 0.2.5; the vendor flags the trade-off directly in the FAQ, that if the security keys change (a migration, a security plugin rotating them) the encrypted credentials become unreadable and have to be re-entered. Defining MWMAIL_ENCRYPTION_KEY in wp-config.php pins a key that survives rotation. wp-config.php constants stand alongside the database as an alternative credential store, useful for multi-environment deployments where credentials should not live in the database at all.
The plugin also warns on three of the most common causes of a mailer plugin appearing to do nothing: another plugin bypassing wp_mail(), a form plugin overriding the From address, and a From address on a different domain than the site. The dashboard shows delivery statistics, a daily volume chart, and the most common failure reasons. A separate Health tab in the shared Meow Apps dashboard checks the site rather than its mail, and its AI analysis needs AI Engine installed.
What it deliberately does not do
The absences are as much of the product as the features. Each is a reason a specific operator profile picks a different plugin.
Per-sender routing is not offered. The plugin uses one active provider by design, with a fallback that engages only on failure, so the FluentSMTP pattern of transactional mail through Postmark and marketing mail through SendGrid needs a different plugin. Open and click tracking are not offered, and the vendor states they will not be, so this is a hard product-line decision rather than a Pro-tier upsell; vendors that build a business on click-tracking sit in a different category, and Meow Mailer will not follow them into it. A persistent send queue is not offered. Background send returns the request quickly, but there is no Action Scheduler-style spool that survives a PHP fatal or restarts on the next cron tick. With Meow Mailer alone, sites that send mail in bursts large enough to require a real queue face the same PHP-timeout constraints as any non-queueing mailer plugin. Since 0.3.2 it works alongside WordPress Mail Queue, a separate plugin that holds mail back to pace it, and each email still leaves through the configured provider.
Push-notification alerts to a mobile app are not offered. Post SMTP has its own mobile app for failure alerts, and it stays the pick for operators who want alerts on the channel they actually watch away from a desk. A paid support contract is not offered, because there is no Pro tier to hang it off. Support runs through the 
wordpress.org plugin forum and Meow Apps’s channels; response is best-effort, no SLA.
The “no Pro, no tracking” question
A plugin that gives away a feature set its largest competitor charges $99 a year for, published by a small established indie developer, invites the same question the FluentSMTP answer settled: how does this sustain, and what is the catch?
The Meow Apps commercial portfolio sits in adjacent products. 
AI Engine is the paid anchor from $59 a year, with Code Engine Pro and SEO Engine Pro alongside it and a stack of AI Engine add-ons. Meow Gallery and Meow Lightbox each pair a free plugin with a paid Pro version. Meow Mailer has no paid version. The pattern is the same one WPManageNinja runs with FluentSMTP against Fluent Forms Pro and FluentCRM: the mailer is not directly monetised; the brand value feeds the products one tier up.
The tracking commitment is a separate line. Most free mailer plugins in the category avoid tracking by omission; Meow Mailer avoids it by declaration. The distinction matters for operators who have been burned before by a free plugin adding a tracking tier under new ownership: a stated permanent commitment is not a guarantee, but it is more than silence.
Where Meow Mailer stands against the alternatives
The comparison that matters most is against FluentSMTP, because the two plugins solve the same problem with the same commercial model. FluentSMTP has a far larger installed base, a mature 2.4.5 release to Meow Mailer’s pre-1.0 0.3.4, and per-sender connection routing that Meow Mailer lacks. Meow Mailer has Zoho Mail OAuth and Maileroo that FluentSMTP does not, and a stated permanent no-tracking commitment where FluentSMTP’s silence on the question leaves the position implicit.
Against WP Mail SMTP: the setup wizard remains the reason a first-time operator on a single site picks it. Meow Mailer does not have the wizard or the large forum and community around it. It has no Pro tier, so it includes the Amazon SES, Microsoft 365, and Zoho Mail coverage that WP Mail SMTP keeps for Pro.
Against Post SMTP: Meow Mailer does not compete on push-notification alerts. Operators who need to hear about a broken order-confirmation flow on a phone stay with Post SMTP.
Against the official single-provider plugins (the SMTP2GO plugin, the Mailgun plugin): Meow Mailer trades install simplicity for provider portability. Operators who want to keep the provider account decoupled from the plugin decision get that with Meow Mailer; operators who want the in-admin provider-stats tab that the official plugins ship do not get it here.
Assessment
Meow Mailer earns its place on a WordPress site whose operator has read the “no Pro, no tracking, ever” positioning and finds it decisive. The feature set is enough to run the site’s transactional email through a professional provider, log every send, resend from the log, and get alerted when delivery fails. Those are the four things most operators actually need from a mailer plugin. The absence of per-sender routing narrows the fit; the pre-1.0 version number and the small install base narrow it further. Neither is a defect for the operators the plugin is right for.
The recommendation calibrates to installed base and maturity: Meow Mailer for the specific-profile operator described above; FluentSMTP for the general free-and-feature-rich case; WP Mail SMTP for the first-time single-site install where the wizard earns its keep; Post SMTP when push-notification alerts are the operational requirement.
The plugin is worth watching. Meow Apps already sells paid products and has shipped 25 releases of this plugin in the four months since its July listing, a better footing for keeping stated commitments than most new plugins have. The plugin has now been listed on wordpress.org for more than a full quarter, and its rounded install figure moved from 600-plus in September to 1,000-plus in November. The next data point is the 1.0 release.
For the broader setup the plugin slots into, see how to set up WordPress email.
Plugin data verified November 2026 against wordpress.org/plugins/meow-mailer, meowapps.com/meow-mailer, and the 0.3.4 readme and source. Tested against version 0.2.5.
Corrections
- 2026-11-05: an earlier version said Post SMTP was the only plugin in the category with push alerts to a mobile app. WP Mail SMTP’s documentation shows browser-based push alerts on mobile devices, a Pro feature.
- 2026-11-05: an earlier version placed the vendor’s no-Pro quote in the plugin description. It is on the Meow Apps product page.
- 2026-11-05: an earlier version said the importer reads
wp-config.phpconstants in general. It reads them for the Mailgun plugin. - 2026-11-05: an earlier version said a health-analysis tab summarises send patterns. Delivery statistics are on the plugin’s dashboard; the Health tab checks the site.
- 2026-11-05: an earlier version put Meow Gallery and Meow Lightbox in a free product line. Both have paid Pro versions.
- 2026-11-05: an earlier version said Meow Mailer lacks free coverage for Amazon SES, Microsoft 365, and Zoho Mail. All three are in the free plugin.
- 2026-11-05: an earlier version said the WP mail config generator returned a block for Meow Mailer’s provider settings. The generator does not offer Meow Mailer as a delivery method.
- 2026-11-05: an earlier version said FluentSMTP has no summary email. It has one, sent on the days the site chooses.