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    GuideIntegrationsWordPress SMTP

    WordPress SMTP

    Connect WordPress to Simply Send using SMTP credentials with a third-party mailer plugin (WP Mail SMTP, FluentSMTP, Easy WP SMTP, and similar). An official Simply Send WordPress plugin is coming soon.

    Overview

    By default, WordPress sends mail through your host's PHP mail() function, which often lands in spam or fails silently. Integrating Simply Send gives you:

    Branded Sending Identity

    Site emails arrive from [email protected] instead of a generic hosting address.

    Reliable Deliverability

    Contact forms, WooCommerce notices (via WordPress SMTP), and membership emails go through authenticated SMTP with SPF/DKIM alignment.

    Setup Guide

    Provision SMTP credentials in Simply Send, then paste them into a WordPress SMTP plugin such as WP Mail SMTP, FluentSMTP, or Easy WP SMTP.

    1. 1
      Provision Credentials in Simply SendGo to the Integrations tab in your User Portal and click Connect on the WordPress SMTP card. Customize the credential label and from-address prefix, then click Create Credentials. Keep this window open.
    2. 2
      Install an SMTP PluginIn your WordPress admin, go to Plugins → Add New and install WP Mail SMTP (or FluentSMTP / Easy WP SMTP). Activate the plugin.
    3. 3
      Choose Other SMTP / Custom SMTPOpen the plugin settings (for WP Mail SMTP: WP Mail SMTP → Settings). Under Mailer, select Other SMTP (or equivalent Custom SMTP option).
    4. 4
      Enter Simply Send SMTP CredentialsEnter the SMTP configurations shown in your Simply Send credential setup popup:
      Host:             <smtp-server-from-setup>
Port:             587
Encryption:       TLS / STARTTLS
Authentication:   On
From Email:       [email protected]
Username:         your-generated-username
Password:         your-generated-password
      Set the plugin's From Email to exactly match the Simply Send credential From Address.
    5. 5
      Save and Send a Test EmailSave the settings, then use the plugin's Email Test (or Tools → Email Test) feature to confirm delivery. Check your Simply Send dashboard for the outbound message.

    Compatible Plugins

    Any WordPress plugin that supports custom SMTP will work with Simply Send. Common options:

    • WP Mail SMTP — Other SMTP mailer
    • FluentSMTP — Other SMTP / Custom SMTP
    • Easy WP SMTP — Other SMTP
    • Post SMTP — Other SMTP

    Contact form plugins (Contact Form 7, WPForms, Gravity Forms, Fluent Forms, etc.) will automatically use your configured SMTP once WordPress mail is routed through Simply Send.

    Troubleshooting

    Ensure "From Address" matches

    Simply Send requires that the sender address configured in your WordPress SMTP plugin exactly matches the From Address bound to your Simply Send SMTP credential. If they mismatch, our servers will reject the outgoing email.

    Use TLS on port 587

    Prefer TLS / STARTTLS on port 587. Some hosts block outbound port 25; SSL on 465 is not used by Simply Send SMTP credentials created from the Integrations flow.