Smooth SMTP

Smooth SMTP gives you full control over how WordPress sends email. Configure SMTP as your primary sending method, set up a fallback for when things go wrong, get notified through your preferred channels, and keep a detailed log of every email your site sends.

Primary Sending Method (SMTP)

Configure any SMTP provider as your primary sending method. If you leave SMTP disabled, WordPress will continue using its default PHP mail — either way, all other features still work.

• Works with any SMTP provider: Gmail, SendGrid, Amazon SES, Mailgun, and more
• Configurable host, port, encryption (SSL/TLS), username, password, from email, and from name
• Secure credential storage using WordPress’s built-in options API

Fallback Sending Method

If the primary sending method fails, Smooth SMTP can automatically retry using a fallback. This works regardless of whether you’re using SMTP or WordPress’s default PHP mail as your primary.

• Fallback to WordPress Default (PHP mail) or a second SMTP server
• Full credential configuration for the fallback SMTP
• Logged separately so you can see exactly which method delivered each email

Failure Alert Channels

Get notified the moment an email fails — through the channels your team already uses.

• Slack, Discord
• Telegram (via Bot API — requires bot token and chat ID)
• WhatsApp (via CallMeBot webhook)
• SMS or any custom webhook endpoint
• Add multiple channels, enable/disable each independently
• Send Test Alert button per channel
• Alerts are throttled to at most one per 60 seconds to avoid flooding

Email Summary Reports

Receive a periodic HTML email summarising your site’s email activity.

• Hourly, daily, weekly, or monthly schedule
• Total sent and failed counts, breakdown by sending method, and recent failures
• Configurable recipient address
• Send Summary Now button for an instant preview

Email Logging

Every email your site sends is logged with full detail.

• Status (success / failed), sender, recipients, subject, message body
• Sent Via column showing which method delivered the email (Primary SMTP, Fallback SMTP, Fallback WordPress Default, etc.)
• Search, filter, and paginate logs from the admin dashboard
• View full email detail in a modal
• Bulk delete, bulk resend, and delete-all options
• Admin dashboard notice when the most recent email failed

Read the full description on the official page →