Free SMTP Relay Server List

SendPulse is a platform that offers multiple channels of communication with customers: email, web push notifications, SMS, Facebook Messenger and Viber. You can send different types of messages separately or combine them with Automation 360.

SendPulse offers marketing tools to empower your business. You can use multiple communication channels to interact with your customers within a single platform including Email, SMS, Web Push, Viber, and Facebook.

SendPulse’s SMTP server is reliable and has a high deliverability rate and sender reputation.

What free plan includes?

Free SMTP Email: 12000 per month

Bandwidth: 1000MB per month

Sending limit: 50 Emails per hour

Email API: Yes

Sendinblue is one of the trusted company with faster email deliverability.  Sendinblue provides services like Email, SMS, Facebook, Chat, CRM, and more, all-in-one platform to help you grow your business through building stronger customer relationships.

What free plan includes?

Free SMTP Email: 9000 per month

Sending limit: 300 emails per day

Email API: Yes

Pepipost is essentially a cloud-based SMTP service provider. It is a robust SMTP relay service by which you can send emails without worrying about the email servers. It is a simple email delivery service designed for developers. Send emails through Pepipost in less than a second after just a 5-minute integration. All you need to do is to change your configuration to point to Pepipost's SMTP servers and add your credentials from Pepipost Account.

You can send up to 30,000 emails for 30 days, once you verify your account for the free trial. If you wish to continue using the free trial after the 30-day period, you can continue to send 100 emails/day for free forever. You can choose to upgrade your plan at any time.

What free plan includes?

Free SMTP Email: 3000 per month

Sending limit: 100 emails per day

Email API: Yes

Elastic Email is an all-in-one email platform that provides SMTP forwarding, robust HTTP APIS, and a user interface with a complete set of tools and features to manage contacts, templates, campaigns, and reports. Elastic EMail specializes in providing transactional and marketing emails. Elastic Mail gives you all the marketing and emailing tools you need to communicate with customers.

What free plan includes?

Free SMTP Email: 3000 per month

Sending limit: 100 emails per day

Email API: Yes

MailJet is a powerful email marketing solution perfect for businesses of any size. MailJet enables you to take full control of your email strategy, managing your contacts list with the aim of improving engagement with your leads and increasing conversions.

As one of the world's leading email service providers, Mailjet's robust delivery infrastructure routes billions of emails to the inbox every month. Easily set up free SMTP Server in minutes and discover how Mailjet platform will help you send your emails faster.

What free plan includes?

Free SMTP Email: 7200 per month

Sending limit: 10 emails per hour(can be removed)

Email API: Yes

SendGrid is a cloud-based SMTP provider that allows you to send email without having to maintain an email server. The tool manages all the technical details, from extending the infrastructure to access to ISPs and reputation monitoring to whitelist services and real-time analytics. The goal of this software is to make it as easy as possible to add reliable, expandable emails to your application so that you can focus on building the core features of the product.

What free plan includes?

Free SMTP Email: 40,000 emails for the first 30 days

Sending limit: 100 emails per day after 30 days

Email API: Yes

SparkPost is an email infrastructure provider and one of the largest global SMTP email delivery services. Sparkpost was built on AWS, Amazon Webservice. The cloud-based email relay service is part of Message Systems, who creates MessageSystems Momentum and Port 25 PowerMTA.

What free plan includes?

Free SMTP Email:  500 emails per month

Sending limit: 100 emails per day

Email API: Yes

Mailgun is an SMTP relay service for sending marketing emails and transactions. Mailgun is a developer-focused email platform offering email delivery service and managed the email delivery service. These are called email forwarding, or SMTP service. You can use Mailgun to send, receive and track email transactions and marketing through the API.
Mailgun was established in 2010, from the Y-Combinator and later acquired by Rackspace. From Feb. 2017, Mailgun became an independent business again. Focus on building their email delivery solutions.

What free plan includes?

Free SMTP Email:  10,000 emails per month

Sending limit: Unknown

Email API: Yes

SMTP2GO is an international SMTP relay service and outgoing email service provider, for sending transactional and marketing emails with native English-speaking support around the world (USA, UK, Spain, Australia, and New Zealand).

It provides a fast and scalable service to send email transactions and marketing and view reports about email delivery. Complexities such as reputation monitoring and DKIM are managed for each client.

SMTP2GO has been offering outgoing email service to thousands of customers for over 10 years. Customers range from ultra-small businesses, sending several hundred emails per month, to medium-sized businesses that send more than 30 million emails per month.

What free plan includes?

Free SMTP Email:  1,000 emails per month

Sending limit: 25 emails per hour

Email API: Yes

Although emailing seems simple, building and managing your own email infrastructure is not like walking in the park. Fortunately, SocketLabs has more than 10 years of experience in the industry as your trusted partner in email - you won't find anyone more obsessed with email.

Regardless of whether you are a developer, marketers, business owner, or an enterprise administrator, SocketLabs have an industry-know-how and expertise to provide the most powerful and likely email platform that will meet your unique needs.

What free plan includes?

Free SMTP Email:  40,000 emails in the first month and 2000 emails per month after that.

Sending limit: Unknown

Email API: Yes

Founded in 2009, TurboSMTP is an independent SMTP provider serving over 100,000 clients on six continents.

TurboSMTP services can meet the needs of any business, ranging from home and small businesses to large email providers. TurboSMTP works hard to ensure maximum email delivery rates and allow to reach all recipients’ inboxes avoiding spam filters and black/grey lists.

TurboSMTP effort is always directed to their customers and their needs, by providing a secure, reliable outgoing mail server and a professional 24/7 tech support.

What free plan includes?

Free SMTP Email:  6000 emails per month for 1 year.

Sending limit: 200 emails per day.

Email API: Yes

Gmail is a free email service developed by Google. Users can access Gmail on the web and use third-party programs that synchronize email content through POP or IMAP protocols.
You can receive, send, delete, and store messages in Gmail just like any other email service. Gmail also provides convenient methods for storing, searching, and labelling messages.
You can also use Gmail SMTP for the transactional email purpose using their SMTP relay service which is very fast and reliable.

What free plan includes?

Free SMTP Email:  3000 emails per month.

Sending limit: 500 emails a day or emails to 100 recipients a day.

Email API: Yes

Outlook.com is a free web-based personal email service from Microsoft that does not scan your emails to serve ads.
Microsoft Outlook is primarily an email application, it also includes calendars, Task Manager, Contact Manager, Notes, Magazines and Web browsing. Outlook organizes your email, calendar, contacts, tasks, and to-do lists, all in one place. The organization starts with your email account.
Microsoft Outlook provides the SMTP service to send email through your email application.

What free plan includes?

Free SMTP Email:  9000 emails per month.

Sending limit: 300 emails a day or emails to 100 recipients a day.

Email API: Yes

Yahoo! Mail is an email service provider launched in 1997 by the American company Yahoo! Inc., currently a subsidiary of Verizon with over 225 million active users.
Yahoo! Mail is one of the leading email providers, appearing shortly after the Gmail and Outlook.
Yahoo! mail accounts also provide unlimited mail archiving, e-mail search, contact list, personalization, spam blocking, and virus scanning.
Yahoo! Mail now allows users to choose how they want to communicate, switching between e-mail, chat, and text messaging options.

What free plan includes?

Free SMTP Email:  15000 emails per month.

Sending limit:  500 emails a day or emails to 100 recipients a day.

Email API: Yes

AOL is an American web portal and online service provider based in New York City owned by Verizon Media. AOL, formerly known as America Online is one of the largest Internet access service companies in the United States that offers a wide range of web services to users.
AOL is one of the first companies to establish strong community awareness among users through friends list and instant Messaging service, conveying billions of messages per day.
AOL offers Internet User services including e-mail, AOL Instant Messenger (AIM), AOL Video, etc.

AOL is operated by Verizon Media so the SMTP limits are all similar to Yahoo! Mail.

What free plan includes?

Free SMTP Email:  15000 emails per month.

Sending limit:  500 emails a day or emails to 100 recipients a day.

Email API: Yes

Yandex is a Russian company originally known for the Yandex search engine.

Yandex began with the search engine in Russian at yandex.ru, but now it has a global English version at yandex.com.

Yandex is the largest technology company in Russia and offers a wide range of different products and services including Search Engine, Email, Advertising, Analytics, Data Management, Software, Artificial Intelligence, Music, eCommerce and many more.

What free plan includes?

Free SMTP Email:  15000 emails per month.

Sending limit:  500 emails a day.

Email API: Yes