AuthSMTP vs SendGrid comparison

AuthSMTP and Twilio are both solutions in the Cloud Email category. AuthSMTP is ranked #11, while Twilio is ranked #1 with an average rating of 8.0. AuthSMTP holds a 2.3% mindshare in CE, compared to Twilio’s 13.7% mindshare. Additionally, 100% of Twilio users are willing to recommend the solution.

AuthSMTP

Read 1 AuthSMTP review

174 Views
174 Comparison Views

0% willing to recommend

SendGrid

Read 17 SendGrid reviews

917 Views
917 Comparison Views

100% willing to recommend

AuthSMTP

SendGrid

Comparison Buyer's Guide

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Executive Summary

We performed a comparison between AuthSMTP and SendGrid based on real PeerSpot user reviews.

Find out what your peers are saying about Twilio, Amazon Web Services (AWS), Intuit and others in Cloud Email.

To learn more, read our detailed Cloud Email Report (Updated: November 2025).

Buyer's Guide

Cloud Email

November 2025

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Helped 879,259 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

AuthSMTP

Ranking in Cloud Email

11th

Average Rating

0.0

Number of Reviews

Ranking in other categories

No ranking in other categories

SendGrid

Ranking in Cloud Email

1st

Average Rating

8.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of December 2025, in the Cloud Email category, the mindshare of AuthSMTP is 2.3%, down from 2.6% compared to the previous year. The mindshare of SendGrid is 13.7%, down from 17.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Email Market Share Distribution
Product	Market Share (%)
SendGrid	13.7%
AuthSMTP	2.3%
Other	84.0%

Cloud Email

Featured Reviews

it_user68556

Director of Operations with 51-200 employees

I have been using this service for a

I have been using this service for a few years now and have never had a problem. It offers excellent value for money and it's a relief not to have to worry about whether an email will be sent when you are abroad or away from the office. Highly recommended.

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Niranjan Sharma

Software Developer at a healthcare company with 11-50 employees

Saves server load by sending bulk email notifications efficiently

The best feature SendGrid offers is the ability to send multiple emails at the same time. The ability to send multiple emails at the same time helps my workflow and organization because I do not have to run a loop every time. Once I set all the emails in a comma separator, I can send them to multiple users without creating too much load on my server. SendGrid has positively impacted my organization by solving the notification problem. By using SendGrid, I can easily send notifications to users, and it is simple to use in my Node.js project. SendGrid has helped with notifications because when I send an email, the user knows who is sending it and they can revert back to our CRM team. That is positive for our business and organization.

Read full review

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Top Industries

By visitors reading reviews

No data available

Manufacturing Company

13%

Government

10%

University

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	13
Large Enterprise	6

Questions from the Community

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What is your experience regarding pricing and costs for SendGrid?

I have no details about pricing, setup cost, and licensing as that is managed by our Alliance and Ecosystem team.

See all answers

What needs improvement with SendGrid?

SendGrid can be improved by making it more versatile and facilitating easier connections with third parties. I believe SendGrid should connect with the IBM Watsonx platform more easily.

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What is your primary use case for SendGrid?

My main use case for SendGrid is to send emails to my clients. A specific example of the kind of emails I send to my clients using SendGrid is that we ask them about what their software license ent...

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Comparisons

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Compared 47% of the time

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Compared 23% of the time

MailChimp vs SendGrid

Compared 18% of the time

ZeptoMail vs SendGrid

Compared 17% of the time

Constant Contact vs SendGrid

Compared 9% of the time

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Product Reports

Buyer's Guide

Cloud Email

November 2025

Download AuthSMTP product report

Buyer's Guide

SendGrid

December 2025

Download SendGrid product report

Overview

AuthSMTP is the outgoing SMTP email service for your e-commerce website, mailing list or email application on most current computers and mobile devices. With instant setup, a money back guarantee and very low cost starter accounts you can test and start sending email in minutes with no risk.

AuthSMTP

SendGrid is a versatile email delivery platform for sending transactional and marketing emails, with APIs for connecting with existing email marketing software. It is used by Fintechs, e-commerce stores, and event management platforms for sending high volumes of emails while following compliance requirements.

The platform offers easy integration and automation, a stable and scalable solution, flexible API, and a high deliverability rate. SendGrid has helped organizations automate communication with clients for commercial campaigns, marketing activities, and transactional tasks, and is the preferred way to communicate with clients for guaranteed delivery.

Twilio

Sample Customers

Trek

ScoutMob

Find out what your peers are saying about Twilio, Amazon Web Services (AWS), Intuit and others in Cloud Email. Updated: November 2025.

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