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StackMime Mail Free · GPL

A WordPress SMTP plugin that gets your email delivered.

WordPress sends email from your web server by default, so form alerts, orders and password resets often land in spam. Send them through a real mail account instead, and see every email in a clear log.

Free download coming soonRead the docs
  • Gmail in minutes
  • Encrypted passwords
  • No tracking, no upsell pop-ups
01Features

Reliable email, set up in minutes.

Light and private: nothing is sent anywhere except to the mail server you choose.

  • GmailApp Password, no OAuth app
  • 12 presetsServer details filled in
  • libsodiumPasswords encrypted
  • wp_mail()Works with every plugin
StackMime Mail settings showing SMTP status and 7-day email totals
Status at a glance Which service is sending, with sent and failed totals for the last 7 days.
StackMime Mail test email screen
Test in one click Send a plain or HTML test, with clear advice when something fails.
StackMime Mail email log with sent and failed messages
A log of every email Who it went to, the subject and whether it was sent, without storing message contents.
02Free vs Pro

Free is complete. Pro goes further.

The free plugin gets your email delivered and shows you what was sent. Pro adds recovery and alerts for busy sites where every email counts.

StackMime Mail: features in Free and Pro
Feature Free Pro Coming soon
Sending
Gmail and SMTP presets Included Included
Encrypted passwords, or wp-config.php Included Included
From, Reply-To and Return-Path Included Included
A backup connection if the main one fails Not included Included
Log and alerts
Email log with filters and search, kept up to 90 days Included Included
Dashboard notice when an email fails Included Included
Resend failed emails in one click Not included Included
Full message content, export and unlimited history Not included Included
Failure alerts by Slack or SMS Not included Included
Help
Documentation and getting-started guide Included Included
Priority email support Not included Included

Pro is a separate add-on that installs alongside the free plugin. Planned Pro features may be refined before launch; this table is updated when they ship.

03Mail Pro

StackMime Mail Pro

For busy sites where a lost email means a lost order or lead.

  • Resend failed emails in one click
  • Full message content, export and unlimited history
  • A backup connection if the main one fails
  • Failure alerts by Slack or SMS
  • Priority email support
  • 1 site For your own business website. $19/ year Per year · on sale soon
  • 5 sites For freelancers and small studios with a few client sites. $49/ year Per year · on sale soon
  • Unlimited sites For agencies that build and look after many sites. $89/ year Per year · on sale soon
Coming soon

Get one email when Mail Pro goes on sale

One email when it’s on sale. Tick any other add-ons you’d like to hear about too, or save with All Pro.

  • Updates and support for the licence term
  • Local and staging sites don't count
  • Keys, downloads and invoices in your account
  • 14 days to ask for a refund
Which add-ons?

We use your email only for this launch message.

04Details

Requirements and changelog.

Requirements

  • An email account that allows SMTP (Gmail, Microsoft 365 or another provider)
  • Works on multisite: each site has its own settings
Read the documentation Plugin terms

External services

StackMime Mail connects to the outgoing mail (SMTP) server you choose, so your emails can be delivered. Nothing is sent until you choose a service and save, and nothing is ever sent to StackMIME.

  • When: each time WordPress sends an email, and when you send a test.
  • What: the email itself, and the username and password you entered, to sign in to the server.
  • Gmail: sent through smtp.gmail.com, under Google’s terms and privacy policy.

Changelog

  1. 1.1.1
    • New: a Getting started guide with set-up steps, tips and answers, and a one-time welcome notice after a fresh install.
  2. 1.1.0
    • New: a cleaner settings screen with a status summary and 7-day totals
    • New: SMTP presets for popular services, including your web host's mailbox
    • New: default Reply-To and Return-Path
    • New: HTML or plain-text test emails, with troubleshooting tips
    • New: log filters, search, paging and an Empty log button
  3. 1.0.1
    • A password saved for one service is never sent to another after switching services.
  4. 1.0.0
    • First release.
Questions

StackMime Mail, answered.

Still unsure? Email info@stackmime.com and a person replies within one working day.

Message us on WhatsApp

Sign in at myaccount.google.com, open Security, turn on 2-Step Verification, then search for App passwords and create one called “Website”. Paste the 16-letter code into StackMime Mail. Spaces don’t matter.

The username or password is wrong. Gmail, Yahoo and iCloud need an app password, not your normal password. For most other services the username is the full email address.

Check the server name and try the other port: 587 with TLS, or 465 with SSL. Some hosts block outgoing mail ports; your host can open one for you.

Send from an address on your own domain, and add the SPF and DKIM records your mail service gives you to your domain’s DNS.

No. It stores the date, recipients, subject, status and any error, and deletes rows after the number of days you choose: 30 by default, up to 90.

Yes. It works with anything that sends through wp_mail(), including Contact Form 7, WPForms, Gravity Forms, StackMime Forms and WooCommerce.

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