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.