Below are the best free SMTP platforms to consider for your business. Brevo SMTP – free plan: 300 emails/day SMTP.com – 50k mails in their offer here. SMTP2GO – free plan: 1,000 emails/month Mailersend – free plan: 3,000 emails/month Moosend SMTP – no SMTP server in free trial Google SMTP – free plan: 100 emails/day Sendpulse – free plan: 12k emails/month Amazon SES – only if you already have an EC2 server SendGrid SMTP – free plan: 100 emails/day Elastic Email SMTP – free plan: 100 emails/day Let’s see what each one of them has to offer you. 1. Brevo SMTP Brevo free SMTP server transactional email service Brevo is one of the most popular email service providers available. The platform allows you to use many marketing channels like email marketing, SMS marketing, live chats, and ads. Brevo has a relay service infrastructure designed with speed and reliability in mind. According to the company, 99.8% of all emails sent using its platform get delivered within 20 seconds. You’ll have access to the following features when you use Brevo: Flexible API: Create custom and dynamic email messages using its responsive API. Access to real-time statistics: You’ll have your email reporting at the tip of your fingers. Monitor metrics like open rate, click rate, deliverability and such, effectively. Easy integration: Integrate seamlessly with your favorite tools and platforms. These include WooCommerce, Shopify, WordPress, Prestashop, and so on. Pricing: You have three pricing tiers to choose from. The free plan gives you 300 free emails per day along with 100,000 contacts. This is good if you’re getting started. The SMTP server is super affordable at 20K emails for $15/month. As your business grows, you might want to consider adding marketing / newsletter platform. And Starter plan (from $9 per month) or Business plan (starting at $18 per month) are also really well priced. 2. SMTP.com smtp.com transactional SMTP Server SMTP.com is an SMTP email relay provider for marketers and developers. It’s been around for 20+ years serving over 100K businesses. Use it to send marketing and transactional emails. Like remarketing campaigns, winback emails, email notifications, registration emails, order confirmations, status updates, and authentication emails. SMTP.com has features like: SMTP reputation defender: suppresses invalid email addresses before you send. This keeps your list healthy and your domain and IP reputation high. Expert support: the support team comprises experienced email delivery experts with decades of collective expertise. Never worry about exceeding email limits. If you go over your monthly limit, keep sending and SMTP.com will charge you for the extra emails in the following billing cycle. SMTP.com integrates with 12 apps, like Shopify, WordPress, Trello, Wufoo, Slack, and Airtable. Integrations also include Google products: Docs, Sheets, Forms, Lead Form Extensions, Calendar, and Gmail. Pricing: Starts at $25/month for 50K emails, email relay API, detailed reporting, shared IP, email, and phone support. 100K emails with a dedicated IP cost $80/month. The reputation defender add-on costs 20% of your plan. 3. SMTP2GO smtp2go smtp email smtp relaying service This is a reputable email delivery service provider. SMTP2GO provides you with the tools you need to properly set up and maintain your outgoing emails. And with a redundant multi-data center infrastructure, you’re assured of your email delivery even during an internet breakdown. SMTP2GO offers the following functionalities: An easy-to-use API: APIs can be complex and bothersome to use. But SMTP2GO takes care of this by designing an API that can be used with minimal fuss by developers and marketers. Advanced email testing options: SMTP2GO allows you to validate your emails with DKIM and SPF. You’ll see how your emails appear in more than 40 email clients and make sure that they pass their spam filters. Access to actionable real-time reports: You’ll be able to track metrics such as bounce rate, click rate, open rate, and unsubscribe rate. You can use the data from these reports to make informed marketing decisions. Pricing: Get started with SMTP2GO’s free plan of 1000 emails per month. The free plan also gives you 5 days of premium reporting. To unlock more perks, you have to subscribe to the Starter plan ($10 per month) or the Professional plan ($75 per month). 4. Mailersend mailersend smtp Mailersend is a transactional email service that also comes with a drag and drop email builder. Your whole team can use it to collaborate and contribute to email campaigns. Mailersend is great for avoiding spam traps, blacklists, and reducing bounce rates. Use it to protect sender reputation using SPF, DKIM, and DMARC security protocols. Get the following features when you use Mailersend: Easy API integration process to start sending deliverable emails instantly Dynamic email templates to build 1 on 1 customer relationships Wide range of email analytics to tweak and control your email performance Easy account management with support for teams and collaboration Pricing: Mailersend offers three pricing plans. Take advantage of the free plan, which you can use to send 3,000 emails per month. You’re guaranteed 99.5% uptime even with a free plan. The premium plan starts at $30 a month and gives you access to 50,000 emails, dedicated IP, and priority support. Your price increases as you send more emails per month. 5. Moosend moosend smtp Moosend is an email and marketing automation tool perfect for small and medium-sized businesses. Use it to create campaigns, landing pages, forms and manage audiences. Moosend has an SMTP service you can integrate with the applications you use to send transactional emails. Moosend doesn’t give exact deliverability rate figures. Nonetheless, they ensure high deliverability using anti-spam checks, SPF, and DKIM implementations. Take advantage of the following features when you use Moosend: SMTP relay server service is easy-to-use. Integrate it with your website and start sending transactional emails right away Easy to monitor performance with analytics and tracking system Keep your IP address protected with a high-quality server infrastructure Easy to connect with a WordPress site Pricing: Moosend has two pricing plans and you can try it out for a 30-day free trial. Although the trial version doesn’t include an SMTP server. The pro plan starts at $9 a month for 500 hundred subscribers. Your price increases as the number of people on your mailing list grow. 6. Google google smtp service You have heard of Google. But there is a good chance you don’t know about its free SMTP service for individuals and organizations. As you might expect, Google has a large and reliable SMTP infrastructure. With its mail servers less likely to be blacklisted. If you want to send good-looking email from your Gmail account, check out our guide on how to send HTML email in Gmail. Or learn how to set up the Gmail SMTP server for sending. You have access to the following features with a Google SMTP server: Reduced spam probability: Google’s servers don’t use port 25 to initiate an SMTP session. What this means for you is that the possibility of ISPs blocking your emails is reduced. Reliable backup: You can allow Google to index all the emails you send using its server. These emails will be searchable and secure on the server. Pricing: To use Google’s free email relay service, you need either a free Gmail address or a paid Google account. With a free address, you can send up to 100 free emails per day. A paid Google account ( starts at $6 per month) lets you send as many as 2,000 emails per day. 7. Sendpulse Sendpulse smtp signup page Sendpulse is a marketing automation platform offering SMTP servers for transactional and bulk emails. It also has a drag and drop email builder, landing pages, a CRM, chatbots, SMS, and an online course builder. Getting started with the Sendpulse SMTP is simple. Just set up using the SMTP protocol and you can start sending. Sendpulse has 24/7 live chat support in case you need a help. Sendpulse SMTP includes these features: Dedicated IP addresses: keep your sender reputation clean and avoid blacklists. Included on all monthly SMTP plans. Free email templates: choose from 60+ pre-made email templates to save time on email coding and design. Detailed reports: including emails sent, opens, clicks, conversions, unsubscribes, and more. Pricing: Send 12K emails/month for free. Sendpulse’s monthly pricing starts at €69.85/month for 100K emails. Pay-as-you-go pricing starts at €15 for 10K emails. Credits are valid for 12 months. 8. Amazon SES amazon ses smtp Amazon SES is a product of Amazon Web Services (AWS). Its cost-effective SMTP server solution allows you to start sending emails in minutes. Using Amazon SES means you will be sending from Amazon’s server infrastructure. Take advantage of fast delivery and almost zero downtime. Amazon SES offers powerful features: Multiple sender configuration options: Amazon SES isn’t limited to emails via SMTP. It also offers options such as Amazon console and Amazon SES API. Mailbox simulator: Amazon SES helps you prepare for worst-case scenarios. With the mailbox simulator, test how your application responds to certain events like bounces, complaints, successful deliveries, or feedback. Reputation dashboard: Amazon SES allows you to keep an eye on details that affect your delivery rate. Issues like references to blocked domains or spam trap hits are tracked so that you can take immediate action. Flexible deployment options: Amazon SES also makes the process of sending your emails as simple as possible. You can share an IP address with other Amazon SES customers, lease a dedicated SMTP server, or use your IP address. Pricing: Amazon SES is one of the cheapest email delivery platforms, especially if you send a lot of emails. They offer a forever-free usage tier where you can send up to 62,000 emails monthly at no cost. But there’s a catch. You have to be an Amazon Elastic Compute Cloud (EC2) subscriber to enjoy that perk. If not, you’ll pay $0.10 for every 1,000 emails you send. When starting out, Amazon SES will put you in a sandbox. This is to prevent fraud and abuse. You can only send 200 emails in 24 hours to verified addresses and domains. Some users reported that it can be hard to get out of the sandbox. You also receive your first 100 emails for free. After that, you pay $0.10 for every 1,000 emails you receive. See our overview Amazon SES alternatives to compare similar services. 9. SendGrid SendGrid analytics email client device data SendGrid is a marketing and automation platform that offers both free and premium SMTP services. SendGrid allows you to use its relay infrastructure to send emails without a server of your own. It’s trusted by companies such as Uber, Spotify, Instacart, and Airbnb. SendGrid offers you the following features: Email address validation: SendGrid uses machine learning to maintain a high delivery rate and keep your funnel leaks at a minimum. You’ll be able to detect invalid email addresses and prompt your users to submit their correct contact information with ease. Easy Integration: You can connect to SendGrid SMTP and access comprehensive open-source libraries in 7 programming languages. And you wouldn’t be left in the dark after this. SendGrid also provides a clear setup flow to help you get started with sending your messages. Pricing: SendGrid offers a free plan where you get 100 free emails per day forever. If your email needs exceed this volume, they have the Essential plan (starts at $14.95/month) and the Pro plan (starts at $89.95/month). All these plans come with a free SMTP relay server. We made an overview of SendGrid alternatives to compare companies like Sendgrid. 10. Elastic Email elastic email smtp Elastic Email is an email service provider with automation, verification, and SMTP relay service. Use it to start sending transactional and marketing emails from your app of choice. In business since 2010, they’ve served 30,000+ businesses including TedX, Poptin, and BrightMetrics. Using Elastic Email, take advantage of great features like: Quick SMTP relay setup Support for 11 programming languages to ensure integration with almost any software Store up to 15 SMTP credentials per account Fast and reliable email delivery Pricing: Elastic Email has two pricing plans. The Email API plan $0.1/1000 emails and $0.5 per day. This plan also comes with an email designer and landing page editor. The Email API Pro plan costs $0.15 per 1000 emails plus $1 a day. This plan includes inbound email processing, subaccounts, and custom rDNS.