AHA Mail SMTP is a modern and free WordPress SMTP plugin developed by Amit Hasan Abdullah. WordPress often fails to deliver emails properly, and many emails end up in the spam folder. This plugin solves that problem by routing your emails through trusted SMTP providers. Key Features Easy Setup Wizar
PricingFree downloadThe WordPress.org download is free. Pro versions, add-ons or external services may cost extra.
CompatibilityRequires WordPress 5.0 and PHP 7.4.
SourceWordPress plugins · Oct 22, 2026
01 / Source details
Aboutthistool.
AHA Mail SMTP is a modern and free WordPress SMTP plugin developed by Amit Hasan Abdullah. WordPress often fails to deliver emails properly, and many emails end up in the spam folder. This plugin solves that problem by routing your emails through trusted SMTP providers.
Key Features
Easy Setup Wizard for quick configuration
Pre-configured options for Gmail, Outlook, Zoho, Brevo, Mailgun, SendGrid, Amazon SES, SMTP2GO, and more
Supports SSL/TLS, STARTTLS, and OAuth 2.0 authentication
04Comprehensive Logging : Track all your email activity with detailed logs
05OAuth Support : Secure authentication for major providers like Gmail, Outlook, and Zoho
06No Limitations : Completely free with no locked features or upsells
Perfect For
Contact forms (Contact Form 7, Gravity Forms, etc.)
WooCommerce order notifications
User registration emails
Password reset emails
Newsletter plugins
Any WordPress email functionality
Ensure your WordPress emails reach the inbox with AHA Mail SMTP!
External services
This plugin connects to external services only when you configure and use OAuth 2.0 authentication or specific SMTP providers. No data is sent to any external service without your explicit configuration and consent.
Google (Gmail OAuth)
When using Gmail with OAuth 2.0, this plugin connects to Google’s OAuth servers to authorize access to your Gmail account for sending emails.
What is sent: Your OAuth authorization code, client credentials, and refresh tokens.
When: Only when you initiate the OAuth flow or when the plugin automatically refreshes an expired access token.
Endpoints: https://accounts.google.com/o/oauth2/auth and https://oauth2.googleapis.com/token
Google Terms of Service | Google Privacy Policy
Microsoft (Outlook OAuth)
When using Outlook with OAuth 2.0, this plugin connects to Microsoft’s identity platform to authorize sending emails via Outlook.
What is sent: Your OAuth authorization code, client credentials, and refresh tokens.
When: Only when you initiate the OAuth flow or when the plugin automatically refreshes an expired access token.
Endpoints: https://login.microsoftonline.com/common/oauth2/v2.0/authorize and https://login.microsoftonline.com/common/oauth2/v2.0/token
Microsoft Terms of Service | Microsoft Privacy Policy
Zoho (Zoho OAuth)
When using Zoho Mail with OAuth 2.0, this plugin connects to Zoho’s OAuth servers to authorize email sending.
What is sent: Your OAuth authorization code, client credentials, and refresh tokens.
When: Only when you initiate the OAuth flow or when the plugin automatically refreshes an expired access token.
Endpoints: https://accounts.zoho.com/oauth/v2/auth and https://accounts.zoho.com/oauth/v2/token
Zoho Terms of Service | Zoho Privacy Policy
Amazon SES
When using Amazon SES as your SMTP provider, this plugin connects directly to Amazon SES SMTP endpoints to deliver your WordPress emails.
What is sent: Your email content (to address, subject, body) and SMTP credentials for authentication.
When: Every time a WordPress email is sent while Amazon SES is configured as the provider.
Endpoint: email-smtp.us-east-1.amazonaws.com (region may vary)
AWS Terms of Service | AWS Privacy Policy
Your SMTP Provider
This plugin is designed to route all WordPress emails through the SMTP server you configure. Your email content is sent to whatever SMTP host you specify in the settings. Please refer to the terms of service and privacy policy of your chosen provider.
Privacy Policy
AHA Mail SMTP does not collect, store, or transmit any personal data outside of your WordPress installation. All SMTP credentials and settings are stored locally in your WordPress database. Email logs (if enabled) are stored locally and can be disabled at any time.
Support
For support, please use the WordPress.org support forums. We monitor them regularly and will do our best to help you with any issues.
Contributing
AHA Mail SMTP is open source. If you’d like to contribute, please visit our GitHub repository.
Credits
Developed by Amit Hasan Abdullah with love for the WordPress community.
Special thanks to the WordPress community and all the contributors who make WordPress amazing.
See it in action
Screenshots & previews.
Setup Wizard - Easy step-by-step configurationGeneral Settings - Clean, modern interface for SMTP configuration
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Gettingstarted.
Automatic Installation
01Log in to your WordPress admin dashboard
02Go to Plugins > Add New
03Search for “AHA Mail SMTP”
04Click “Install Now” and then “Activate”
05Go to AHA Mail SMTP in your admin menu to configure
Manual Installation
06Download the plugin zip file
07Log in to your WordPress admin dashboard
08Go to Plugins > Add New > Upload Plugin
09Choose the zip file and click “Install Now”
10Activate the plugin
11Go to AHA Mail SMTP in your admin menu to configure
Configuration
12After activation, you’ll see the setup wizard (or go to AHA Mail SMTP in admin menu)
13Choose your email provider from the list
14Enter your SMTP settings (auto-filled for popular providers)
15Configure authentication (OAuth recommended for Gmail, Outlook, Zoho)
16Set your From Email and From Name
17Send a test email to verify everything works
18You’re done! Your emails will now be sent via SMTP
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Frequently asked questions.
Is this plugin really free?
Yes! AHA Mail SMTP is completely free with no limitations, locked features, or upsells. All features are available to everyone.
Which email providers are supported?
We support all major email providers including Gmail, Outlook, Zoho, Brevo, Mailgun, SendGrid, Amazon SES, SMTP2GO, and any custom SMTP server.
Do I need technical knowledge to set this up?
Not at all! Our setup wizard guides you through the entire process step by step. For popular providers, settings are automatically configured.
What is OAuth and should I use it?
OAuth 2.0 is a more secure authentication method that doesn’t require storing your email password. We highly recommend using OAuth for Gmail, Outlook, and Zoho.
Will this work with my contact form plugin?
Yes! AHA Mail SMTP works with all WordPress plugins that use the standard wp_mail() function, including Contact Form 7, Gravity Forms, WooCommerce, and more.
Can I use this on a multisite network?
Yes, AHA Mail SMTP is fully compatible with WordPress multisite networks.
How do I know if my emails are being sent?
The plugin includes comprehensive email logging. You can view all sent emails, their status, and any error messages in the Email Logs tab.
What if I need help?
Check our documentation first. If you still need help, you can reach out through the WordPress.org support forums.
Can I import/export my settings?
Yes! You can export your settings as a JSON file and import them on another site. This is perfect for developers managing multiple sites.
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