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Tested and recommended SMTP services for Autoresponder.vip

Autoresponder.vip works perfectly with the mail() function, unfortunately most web hosting providers have strict limitations for sending emails through this method.

Some free hosting providers, for example, only allow sending 25 emails per day through this method.

To solve the problem of restrictions from free and/or shared hosting and ensure your emails don't end up in the spam folder, integrating an external SMTP provider is the best option.

Below, we detail the best services on the market, taking into account that they offer free plans, ideal to complement our zero-cost or minimum-cost philosophy:

Brevo (formerly Sendinblue)

It's one of the most popular services currently.

What does it offer?

  • API and SMTP support.
  • Excellent deliverability.
  • 300 emails per day (approximately 9,000 emails per month).

Mailjet

An email sending giant, designed mainly for developers.

What does it offer?

  • API and SMTP support.
  • 200 emails per day (6,000 emails per month).

Resend

A modern, fast service very focused on developers, with a clean interface and excellent documentation.

What does it offer?

  • API and SMTP support.
  • 100 emails per day (3,000 emails per month).

Postmark

Known for having the best speed and delivery reputation on the market for transactional emails.

What does it offer?

  • API and SMTP support.
  • 100 emails per day (3,000 emails per month).

MailerLite

Although it is a complete marketing platform, it offers access to its API and SMTP credentials in its free plan.

What does it offer?

  • API and SMTP support.
  • ≈ 83 emails per day, 2,500 emails per month.

Increase SMTP sending quotas

All the options shown above offer ways to expand the monthly sending limit that you can use with their SMTP service integrated into Autoresponder.vip

Even so, and in case you want to expand the monthly limits, or you want to start from the beginning with high sending capacities, the service we recommend is the following:

SMTP

SMTP is a platform that covers all transaction, relay, and email delivery needs at a very affordable price.

With decades of experience, they are recognized as one of the most reliable senders in the industry by Internet Service Providers (ISPs).

What does it offer?

  • API and SMTP support.
  • 50,000 emails per month on the basic plan of $25/month.

📝 NOTE: Although Autoresponder.vip is designed to process sending queues to avoid processing errors, we cannot do anything regarding the email sending limits imposed by either SMTP services or web hosting services, therefore, we recommend using Brevo first, whose service offers the highest daily sending quota and excellent deliverability at zero cost.