Communication protocol

A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity.

There is a large number of communication protocols, but the most popular among our users during email's creation are https://, mailto:, and tel:. The protocols are compatible with a large number of mail clients and web interfaces of mail services.

Email marketers started to use new protocols that have emerged with the development of messengers. Our team tested a few popular messenger protocols and collected the results.

Messenger protocol's support in email clients and email services

Protocol

Email client

OS and / or application version

viber://

Apple Mail

iOS, macOS

Outlook

macOS, Windows

Spark

macOS, Android

EdisonMail

iOS, Android

Airmail

iOS, macOS

CanaryMail

macOS, Android

SamsungMail

Android

sms:

Apple Mail

iOS, macOS

Outlook

macOS, Windows

Spark

iOS, macOS, Android

EdisonMail

iOS, Android

Airmail

iOS, macOS

CanaryMail

Android

SamsungMail

Android

tel:

Mail.ru

Web, iOS, Android

Yandex Mail

Web, iOS

Gmail

Web, Android

Apple Mail

iOS, macOS

Ukr.net

Web, iOS

Outlook

Web, Windows, macOS, iOS, Android

Spark

iOS, macOS, Android

EdisonMail

iOS, macOS, Android

Airmail

iOS, macOS

CanaryMail

iOS, Android

SamsungMail

Android

skype:

Mail.ru

Web, iOS, Android

Yandex Mail

Web

Apple Mail

iOS, macOS

Yahoo

Web

Aol

Web

Outlook

macOS, Windows

Spark

iOS, macOS, Android

EdisonMail

iOS, Android

Airmail

iOS, macOS

CanaryMail

Android

SamsungMail

Android

tg://

Apple Mail

iOS, macOS

Outlook

macOS, Windows

Spark

macOS, Android

EdisonMail

iOS, Android

Airmail

iOS, macOS

CanaryMail

macOS, Android

SamsungMail

Android

whatsapp://

Apple Mail

iOS, macOS

Outlook

macOS, Windows

Spark

macOS, Android

EdisonMail

iOS, Android

Airmail

iOS, macOS

CanaryMail

macOS, Android

SamsungMail

Android

Based on June 2021.
Tested on iOS 14.6, Android 10, 11 and MS Office2019.

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