SignEmail SMTP & DNS Diagnostic v2.4.37
Stop WordPress emails from going to spam. Send emails via SMTP and check SPF, DKIM, DMARC records to improve email deliverability.
Tags / smtp
smtp
344 WordPress plugins tagged “smtp”. Every result links to a crawlable PlugIndex profile.
SimpleMailer Contact Form v0.9
SimpleMailer - is an end-user friendly contact form plugin, it is quite easy to configure and customize.
SiteNivo – Modular Site Toolkit v1.3.4
Custom fields, custom post types, taxonomies, SEO & speed toolkit in one plugin — build structure and optimize your site with zero code.
Sitevorx v1.3.2
An all-in-one WordPress toolkit for site optimization, security hardening, SMTP configuration, disk cleanup, and maintenance monitoring.
Smackcoders MailPilot v1.0
Send reliable emails through a trusted SMTP or API mailer, guided by a Setup Wizard, with a full Email Log and Test Email tool.
SMTP for WP v1.1
Configure SMTP details to send emails using your SMTP account.
SMTP Form Master v2.0.4
Contact forms with SMTP, email templates, and reCAPTCHA v3 spam protection.
SMTP mailer Override v1.0
SMTP Mailer Override Plugin The SMTP Mailer Override plugin is a WordPress plugin that allows you to customize the SMTP server used for sending email …
SMTP Override v1.1.1
A SMTP Settings manager Override default wp_mail and use basic SMTP settings , when active look in your settings for a new "SMTP Options" …
SMTP Senpai v1.1.3
Send WordPress email through SMTP Senpai by MailSenpai, an EU-hosted SMTP relay and email API. API key or SMTP, test email, domain check, log.
SMTPify v1.0.1
Routes wp_mail() through your provider's SMTP server. Simple settings page, built-in test tool, nothing else.
SMTPing Email Suite: SMTP, Newsletter & Email Verification v0.27.1
SMTP mailer, newsletter and email verification in one plugin: send reliably, grow your list and never mail a bad address.
SMTPMaster Email Sender v1.0.3
Send WordPress email via SMTP or SMTPMaster API with local logs and optional tracking.
SOHO SMTP v2.1.4
Send every email from your site through SMTP, an email API, or your Google / Microsoft account, with a backup server and retries.
Solviroa – Email Setup & Deliverability v0.2.4
Guided email migration, setup, diagnostics and deliverability checks for WordPress.
SourceForge Project Web Email Configuration v1.0.1
This plugin help you configure the email(smtp) functions for your WordPress hosted on SourceForge.net Project Web. 在SourceForge的Project Web或User Web中安装WordPress时，无法通过WordPress默认的方法发送邮件，但可以通过SourceForge提供的方法发送邮件（Project Web Email Configuration）。插件将SourceForge提供的Email配置HOOK到WordPress的wp_mail()函数里，使得邮件功能在SourceForge空间下也可以正常工作。在启用插件后，可到选项配置界面进行参数设置。
SpamRate — Email Deliverability Testing v1.2.1
Test your newsletter, WooCommerce and WordPress email deliverability from any SMTP setup — inbox-placement tests at Gmail, Outlook, Yahoo and more.
SSF SMTP Mailer – Email Setup, Sender Settings & Test Emails v0.1.1
Configure SMTP sending, choose sender details and check a test email with a guided, privacy-conscious WordPress setup.
Stampy v1.0.0
Self-hosted mailing-list plugin with double opt-in, custom fields, block-editor campaigns, SMTP, tracking, import/export, and GDPR tools.
Stryker SMTP v1.0
Stryker SMTP sends all WordPress emails through an SMTP server of your choice. Configure SMTP credentials from the wp-admin settings page.
SuiteMkt3k v1.1.4
Marketing suite for stores with coupons, newsletter, cart recovery, subscribers, analytics and built-in SMTP.
Sy Mailer v1.0.1
Sy Mailer is a WordPress email plugin that makes it convenient for users to configure SMTP settings.
Tahhan JMAP Mailer v1.4.1
Send WordPress emails via the modern JMAP protocol — no SMTP ports needed.
Tech Dragon Mail Conduit v1.1.1
Connect MailPoet to your existing WordPress mailer.