The 7 Best SMTP Services You Can Integrate Into Your Website Today
Are you looking for a Simple Mail Transfer Protocol (SMTP) provider to send transactional emails or newsletters to customers from your website? There are many options out there to consider.
Your best bet is to start with these excellent SMTP services.
Mailgun is one of the leading SMTP providers with plugin support for content management systems (CMSes), including Ghost and WordPress. One of its selling points is its fast email validation service. If building an application from scratch, it features an HTTP mailing API and a standard SMTP option for manually integrating mailing functionality into your application.
Although it has a limited sandbox domain for testing, you’ll need to use Mailgun with your domain name to start sending multiple emails in real-time. One of the alluring things about Mailgun is that it allows you to send up to 5,000 free emails monthly. This comes with zero validations, which you might not require if you already use anemail verification toolor some form of regex to validate emails.
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Once your exhaust your free emails, it charges based on usage or optional standard subscriptions. You can expect to spend one dollar per 1,000 extra emails and $1.2 for 100 email validations.
2.Mailchimp
Whether building an email list, setting up a marketing campaign, or trying to monitor email click-through rates, Mailchimp offers a straightforward integration into any application. In addition to mailing API and SMTP options, Mailchimp features a marketing campaign API for creating event-targeted mailing lists. And you’re able to create a custom template from scratch using HTML, giving you more flexibility with your email body structure.
Mailchimp has more customizable and easy-to-use email templates for drafting professional emails. You can hop on the Mailchimp train if you have a contact list of less than a thousand. But be ready to spend more as you go above this limit.

3.Elastic Email
From transactional emails to Newsletters, and marketing emails, Elastic Email brings you one of the easiest ways to integrate mailing with your application. Like most similar services, Elastic Email has HTTP API and standard SMTP options.
These options are extensive, as they feature email verification, and campaign and clickthrough monitoring, in addition to sending emails. Elastic Email also has an activity and a log dashboard for viewing request timelines in case your mail hits a roadblock.

You can send up to 100 emails daily with the free plan. The paid plan is also relatively cheaper. At least you can send up to 10,000 emails monthly with a recurrent $9 subscription. Elastic Email also offers private IPs for inbound organizational mailing. However, this comes at an extra cost of $40 as of writing.
4.Twilio SendGrid
If your application’s requirements extend beyond sending emails, Twilio SendGrid is an all-in-one messaging provider you can leverage to add SMS and WhatsApp automation functionalities. An installable CLI lets you use the Twilio API and test your integrations directly from the command line.
Featuring explicit HTTP and SMTP emailing APIs, Twilio SendGrid offers straightforward integration, whether using a website builder or creating an application from scratch. It also supports email verification and performance insights, plus fast email delivery.

Pricing is flexible, allowing you to send up to 100 free emails daily. While you can scale this number to up to 100,000 emails monthly for $19.95, higher features like email validation and private IPs come with higher monthly billing, starting at $89.95.
5.Amazon SES
Amazon SES maintains the company’s track record as its cloud email service. Besides scalability, Amazon SES works seamlessly with other cloud services, including Amazon EC2 and Cloudwatch, which allows you to set up monitoring.
While most SMTP providers work on a subscription basis, Amazon SES charges as you go. Although, at first, its pricing structure looks expensive, it’s more cost-effective than most services utilizing traditional subscription plans.
If you send above 10,000 emails monthly, Amazon SES might be your pocket saver. Expect to spend $0.1 for every 1,000 emails sent; this means you spend $1 per 10,000 emails. As well as being cheaper, Amazon SES makes it easier to estimate your bill upfront.
Formerly Sendinblue, Brevo offers various email marketing andNewsletter tools for customer engagementand monitoring. Featuring HTTP and SMTP APIs, its mailing feature also comes with instant transactional email deliverables.
In addition to sending emails, Brevo also features webhooks to monitor email replies. You can also use its A/B testing functionality to improve email deliverability. Like Twilio SendGrid, it features APIs for automating bilk SMS and WhatsApp messages. You can send 300 free emails daily. But its premium plan starts at $25 for up to 20,000 emails monthly.
Mailjet offers one of the most customizable email templates, with an option to create one from scratch using styled HTML. It also features HTTP API and SMTP relays, making it easy to integrate into your application’s code base. And if you’re using WordPress, you’ll appreciate the free plugin in the marketplace.
You can also create emails for marketing campaigns from the dashboard and send them in bulk to your mailing list. Feel free to automate this using the event-triggered workflow.
Mailjet allows you to send up to 6,000 emails monthly with a 200 daily limit. Although it features email verification, this comes with the paid plan, which starts at $15 monthly for sending up to 15,000 emails, without a daily limit.
Send Professional Emails Easily
Sending an email directly from your domain gives it more weight and makes it more professional than using a regular email address.
There are many SMTP providers. But choosing a cost-effective option that offers easy integration makes your email marketing easier. You might also want to use some newsletter preparation tips to craft your next campaign.
Want to start your own successful newsletter? Here’s a beginner’s checklist for connecting with your audience effectively.
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