Title: DeliveryKit SMTP Author: codemasterhub Published: May 3, 2026 Last modified: May 3, 2026 --- Search plugins ![](https://ps.w.org/deliverykit-smtp/assets/banner-772x250.jpg?rev=3521656) ![](https://ps.w.org/deliverykit-smtp/assets/icon-256x256.png?rev=3521656) # DeliveryKit SMTP By [codemasterhub](https://profiles.wordpress.org/codemasterhub/) [Download](https://downloads.wordpress.org/plugin/deliverykit-smtp.1.0.0.zip) * [Details](https://wordpress.org/plugins/deliverykit-smtp/#description) * [Reviews](https://wordpress.org/plugins/deliverykit-smtp/#reviews) * [Installation](https://wordpress.org/plugins/deliverykit-smtp/#installation) * [Development](https://wordpress.org/plugins/deliverykit-smtp/#developers) [Support](https://wordpress.org/support/plugin/deliverykit-smtp/) ## Description DeliveryKit SMTP helps you send WordPress emails using SMTP or supported mail APIs. Free version features: * SMTP and API based email delivery * Multiple saved connections* Email testing * Email logging * Settings import and export * Retention cleanup * Summary email reports For more features, see [DeliveryKit SMTP Pro](https://codemasterhub.com/items/deliverykitsmtp-pro/). ### External services DeliveryKit SMTP only connects to the mail provider that you configure. No provider API requests are made until you configure and use a provider connection, complete an OAuth authorization flow, verify a provider account, send a test email, or send a WordPress email through that provider. #### Google (Gmail) API Used to authorize Gmail sending and deliver mail through the Gmail API. When this mailer is configured or used, the plugin sends OAuth requests, access and refresh tokens, sender profile lookups, and the sender, recipient, subject, message body, and attachment data required to deliver the email. Terms: [https://policies.google.com/terms](https://policies.google.com/terms) Privacy: [https://policies.google.com/privacy](https://policies.google.com/privacy) #### Microsoft 365 / Outlook Used to authorize Microsoft 365 or Outlook sending and deliver mail through Microsoft Graph. When this mailer is configured or used, the plugin sends OAuth requests, access and refresh tokens, account profile lookups, and the sender, recipient, subject, message body, and attachment data required to deliver the email. Terms: [https://www.microsoft.com/servicesagreement](https://www.microsoft.com/servicesagreement) Privacy: [https://privacy.microsoft.com/privacystatement](https://privacy.microsoft.com/privacystatement) #### Zoho Mail Used to authorize Zoho Mail sending and deliver mail through Zoho APIs. When this mailer is configured or used, the plugin sends OAuth requests, access and refresh tokens, account lookups, and the sender, recipient, subject, message body, and attachment data required to deliver the email. Terms: [https://www.zoho.com/terms.html](https://www.zoho.com/terms.html) Privacy: [https://www.zoho.com/privacy.html](https://www.zoho.com/privacy.html) #### Transactional email provider APIs If you configure one of the API mailers below, the plugin sends the sender, recipient, subject, message body, headers, attachment data, and the authentication credential required by that provider, such as an API key, access token, SMTP username, or SMTP password, whenever WordPress sends an email or you run a test email. * Brevo – Terms: [https://www.brevo.com/legal/termsofuse/](https://www.brevo.com/legal/termsofuse/) | Privacy: [https://www.brevo.com/legal/privacypolicy/](https://www.brevo.com/legal/privacypolicy/) * SendLayer – Terms: [https://sendlayer.com/terms-of-service/](https://sendlayer.com/terms-of-service/) | Privacy: [https://sendlayer.com/privacy-policy/](https://sendlayer.com/privacy-policy/) * SMTP.com – Terms: [https://www.smtp.com/policies/terms-and-conditions/](https://www.smtp.com/policies/terms-and-conditions/) | Privacy: [https://www.smtp.com/policies/privacy-policy/](https://www.smtp.com/policies/privacy-policy/) * Amazon SES – Terms: [https://aws.amazon.com/service-terms/](https://aws.amazon.com/service-terms/) | Privacy: [https://aws.amazon.com/privacy/](https://aws.amazon.com/privacy/) * SendGrid – Terms: [https://www.twilio.com/legal/tos](https://www.twilio.com/legal/tos) | Privacy: [https://www.twilio.com/legal/privacy](https://www.twilio.com/legal/privacy) * Elastic Email – Terms: [https://elasticemail.com/resources/usage-policies/terms-of-use](https://elasticemail.com/resources/usage-policies/terms-of-use) | Privacy: [https://elasticemail.com/resources/usage-policies/privacy-policy](https://elasticemail.com/resources/usage-policies/privacy-policy) * Mailgun – Terms: [https://www.mailgun.com/terms/](https://www.mailgun.com/terms/) | Privacy: [https://www.mailgun.com/privacy-policy/](https://www.mailgun.com/privacy-policy/) * Mailjet – Terms: [https://www.mailjet.com/legal/terms/](https://www.mailjet.com/legal/terms/) | Privacy: [https://www.mailjet.com/legal/privacy-policy/](https://www.mailjet.com/legal/privacy-policy/) * MailerSend – Terms: [https://www.mailersend.com/legal/terms-of-use](https://www.mailersend.com/legal/terms-of-use) | Privacy: [https://www.mailersend.com/legal/privacy-policy](https://www.mailersend.com/legal/privacy-policy) * Mandrill / Mailchimp Transactional – Terms: [https://mailchimp.com/legal/terms/](https://mailchimp.com/legal/terms/) | Privacy: [https://mailchimp.com/legal/privacy/](https://mailchimp.com/legal/privacy/) * Postmark – Terms: [https://postmarkapp.com/terms-of-service](https://postmarkapp.com/terms-of-service) | Privacy: [https://postmarkapp.com/privacy-policy](https://postmarkapp.com/privacy-policy) * Resend – Terms: [https://resend.com/legal/terms-of-service](https://resend.com/legal/terms-of-service) | Privacy: [https://resend.com/legal/privacy-policy](https://resend.com/legal/privacy-policy) * SMTP2GO – Terms: [https://www.smtp2go.com/terms/](https://www.smtp2go.com/terms/) | Privacy: [https://www.smtp2go.com/privacy/](https://www.smtp2go.com/privacy/) * SparkPost – Terms: [https://bird.com/terms](https://bird.com/terms) | Privacy: [https://bird.com/privacy](https://bird.com/privacy) * Netcore / Pepipost – Terms: [https://netcorecloud.com/terms-of-service/](https://netcorecloud.com/terms-of-service/) | Email API Terms: [https://netcorecloud.com/email-api-terms-and-policies/](https://netcorecloud.com/email-api-terms-and-policies/) | Privacy: [https://netcorecloud.com/privacy-policy/](https://netcorecloud.com/privacy-policy/) * Other SMTP – This mailer connects directly to the SMTP server that you enter in the plugin settings. Terms and privacy depend on your chosen mail server provider. ## Installation 1. Upload the plugin to the `/wp-content/plugins/` directory. 2. Activate the plugin through the Plugins menu in WordPress. 3. Go to `Settings -> DeliveryKit SMTP`. 4. Configure your mailer settings. 5. Send a test email to confirm everything is working. ## FAQ ### Does the plugin support multiple saved connections? Yes. You can save and manage multiple connections. ### Can I test email delivery? Yes. You can send a test email from the plugin settings. ### Does the plugin keep email logs? Yes. The plugin includes email logging. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “DeliveryKit SMTP” is open source software. The following people have contributed to this plugin. Contributors * [ codemasterhub ](https://profiles.wordpress.org/codemasterhub/) [Translate “DeliveryKit SMTP” into your language.](https://translate.wordpress.org/projects/wp-plugins/deliverykit-smtp) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/deliverykit-smtp/), check out the [SVN repository](https://plugins.svn.wordpress.org/deliverykit-smtp/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/deliverykit-smtp/) by [RSS](https://plugins.trac.wordpress.org/log/deliverykit-smtp/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.0 * Initial free release with SMTP/API delivery, multiple saved connections, email testing, email logs, settings import/export, retention cleanup, and summary email reports. ## Meta * Version **1.0.0** * Last updated **3 days ago** * Active installations **Fewer than 10** * WordPress version ** 6.0 or higher ** * Tested up to **6.9.4** * PHP version ** 7.4 or higher ** * Tags * [email](https://wordpress.org/plugins/tags/email/)[mail](https://wordpress.org/plugins/tags/mail/) [smtp](https://wordpress.org/plugins/tags/smtp/) * [Advanced View](https://wordpress.org/plugins/deliverykit-smtp/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/deliverykit-smtp/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/deliverykit-smtp/reviews/) ## Contributors * [ codemasterhub ](https://profiles.wordpress.org/codemasterhub/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/deliverykit-smtp/)