Alternatives

Products that do what ShuttleCloud does

API for importing address books from 242 email providers.

1
Mailercloud Email API Platform▲165
1,000+ Emails per Second with 99%+ Deliverability
Mar 2026
2
Mailcloud▲110
A New Way to Email
2014
3
Project Oxford▲301
A catalogue of artificial intelligence APIs by Microsoft
2015
4
Stamplia API▲150
Get thousands of email templates into your application
2015
5
Mailercloud▲203
Launch successful email campaigns like a pro
2022
6MS
Maildown – Super Simple Email API▲98
2019 · github.com
7AS
Amazon S3, Microsoft Azure, Rackspace, Backblaze via a Single API▲191
2016 · cloudrail.com
8
Context.IO▲226
API for email inboxes
2015
9
Cloudflare Email Service▲168
Turn any email inbox into a native interface for AI agents
Apr 2026
10
Rabbits▲246
Outsource programming tasks as simple as sending an email
2015
11
MailClark▲198
The Slack bot for external communications
2016
12
EasyListing▲102
Create, manage, and grow your email list
2025
13LO
Library of API collections for Postman▲77
2017 · postmancollections.com
14
Mail Rocket▲141
Create a mail merge with Gmail and Google Sheets
2024
15PL
Python library to read and manage your Gmail▲158
2013 · github.com
16
ContactRescue▲92
Magically get your address book up-to-date and accurate
2017
17
CloudSponge Address Book Widget▲85
Let your users look up contacts without leaving your site.
2016
18
Ultimate Email Playbook▲122
43 email scripts from best marketers on the web
2016
19MS
Maildown – super simple email API▲40
2020 · maildown.dev
20
Switchboard▲99
Open-source email processing built in Erlang
2014
21
MailSlurp▲103
End-to-end email testing made easy
2018
22MT
MailDrop, throwaway e-mail addresses, built with Scala and Akka▲81
2013 · maildrop.cc
23SA
SendToMyCloud – A Public Inbox for Your Dropbox and Google Drive▲22
2015 · sendtomycloud.com
24
Free Email Finder & Verifier▲69
Find quality emails from a domain and verify their validity
2022

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