Email Marketing for WordPress and WooCommerce – Retainful vs Global SMTP

Global SMTP is a utility plugin designed to easily configure SMTP for WordPress by adding a set of constants to your wp-config.php file. When used with multisite, the configuration is applied network wide. This is often handy to install as a “must use” plugin.

Retainful is a powerful email marketing tool for WooCommerce and WordPress that gives you everything to grow revenue —without the complexity or enterprise pricing. Build your list, recover abandoned carts, automate customer journeys, and send beautiful email campaigns, capture email addresses with signup forms & exit intent popups, and more. Start free today → The Problem with Most Email Marketing Tools You’ve tried the big platforms. You know the frustration: complicated interfaces, expensive pricing tiers that punish growth, and integrations that never quite work the way you need. Your WordPress / WooCommerce store deserves an email marketing solution that actually understands eCommerce—one that connects deeply with your customer data and helps you sell more without the headaches. Retainful was built specifically for WordPress and WooCommerce store owners who want professional email marketing without hiring a team to manage it. Why Store Owners Trust Retainful Built for WooCommerce – Not a generic tool with a WooCommerce add-on. Deep native integration from day one. Complete automation – Pre-built flows for abandoned cart recovery, customer winback, welcome series, and post-purchase follow-ups ready to activate in minutes. Beautiful emails, zero coding – Drag and drop email editor with ready-made templates designed for conversions. Grow your list faster – Exit-intent popups, add-to-cart popups, and embedded signup forms capture more subscribers. Smart segmentation – Send the right message to the right customer based on purchase history, behavior, and engagement. One dashboard, all your stores – Manage multiple WooCommerce sites from a single Retainful account. Affordable at any scale – Predictable pricing that doesn’t punish you for growing your list. Start free today → 📧 Email Campaigns & Newsletters Create and send one-time email campaigns or recurring newsletters that your subscribers actually want to open. Segment your audience, personalize your content, and track performance with detailed analytics. One-time promotional campaigns Recurring newsletter broadcasts A/B testing for subject lines Send time optimization Automated follow-up emails Detailed campaign analytics ⚡ Email Automation & Flows Set up automated email sequences that run 24/7, turning browsers into buyers and one-time customers into loyal fans. Our visual automation builder makes it easy to create sophisticated customer journeys without technical skills. Pre-built automation flows included: Abandoned Cart Recovery – Automatically remind customers about items left in their cart and recover lost sales Browse Abandonment – Re-engage visitors who viewed products but didn’t add to cart Welcome Email Series – Make a great first impression when new subscribers join your list Post-Purchase Thank You – Build loyalty with personalized thank you emails after every order Customer Winback – Reconnect with customers who haven’t purchased in a while Order Follow-Up – Request reviews, suggest related products, and keep the conversation going Each flow is ready to activate with proven templates—or customize every detail to match your brand. Start free today → 🎨 Drag and Drop Email Editor Design professional emails that look great on every device. No coding, no design skills required. Just drag, drop, and publish. Visual drag and drop interface Mobile-responsive designs Product blocks that pull directly from your WooCommerce catalog Dynamic content based on customer data Save and reuse custom templates HTML editing for advanced users 📝 Ready-Made Email Templates Start with conversion-optimized templates designed specifically for eCommerce. Every template is fully customizable and mobile-ready. Cart recovery templates Welcome series templates Promotional campaign templates Holiday and seasonal templates Transactional email templates Newsletter layouts 📋 Signup Forms & List Building Capture more email subscribers with high-converting forms that appear at exactly the right moment. Exit-Intent Popups – Capture leaving visitors before they’re gone Add-to-Cart Popups – Collect emails when purchase intent is highest Welcome Popups – Greet new visitors with an offer they can’t refuse Embedded Newsletter Subscription Forms – Place signup forms anywhere on your site Start free today → 👥 Lists, Segments & Audience Management Organize your subscribers and send targeted messages that resonate. Complete audience management tools give you full control over your customer data. Unlimited lists and segments Behavior-based segmentation (purchase history, email engagement) Dynamic segments that update automatically Customer profiles with complete purchase history Import/export subscribers GDPR-compliant list management, double opt-in, and more 🛒 Deep WooCommerce Integration Retainful doesn’t just connect to WooCommerce—it becomes part of it. Use your store data for truly personalized email marketing automation. Real-time cart tracking for recovery campaigns Complete order history based email sequences Product recommendations based on purchase behavior Customer lifetime value tracking Automatic coupon code generation and tracking Revenue attribution for every email Start free today → 🌍 Multi-Language & Multi-Store Running multiple stores or serving international customers? Retainful scales with you. Multi-lingual compatibility – Send emails in your customers’ preferred language Multi-store management – Connect and manage multiple WooCommerce sites from one account Centralized reporting – See performance across all your stores in one dashboard 🎯 Complete Personalization Every customer is unique. Your emails should be too. Use dynamic content and personalization to make every message feel like it was written just for them. First name, last name, and custom field personalization Product recommendations based on browsing and purchase history Dynamic coupon codes unique to each recipient Conditional content blocks based on customer segments Personalized subject lines that boost open rates Who Should Use Retainful? ✅ WooCommerce store owners who want to recover abandoned carts and increase repeat purchases ✅ Growing eCommerce brands looking for a Klaviyo or Mailchimp alternative that won’t break the budget ✅ Marketers who need powerful automation without a steep learning curve ✅ Agencies managing email marketing for multiple client stores ✅ International sellers who need multi-language email capabilities Start free today → Quick Start Guide Step 1: Install and Connect Your Store Install & activate the plugin. Create an account at Retainful and login. The setup wizard will guide you with connecting your WordPress site / WooCommerce store. Step 2: Activate Abandoned Cart Recovery Go to Retainful dashboard → Flows and enable the abandoned cart flow. The pre-built sequence includes three reminder emails timed to maximize recovery rates. Customize the templates or use them as-is. Step 3: Set Up Your First Popup Navigate to Retainful dashboard → Signup Forms to create an exit-intent popup or welcome form. Choose a template, customize your offer, and set your display rules. Step 4: Send Your First Campaign Go to Retainful dashboard → Campaigns → Create New. Choose your template, write your content using the drag and drop editor, select your audience segment, and schedule your send.