At Inbox Marketing, we test all emails on this list.
Desktop, web versions
Yandex.Mail.
Mail.ru (+ dark theme).
Yahoo.
Gmail.
Desktop, application
Outlook MS Office 365.
Mobile devices. Android 9 6.3" and Android 6 5", applications
Yandex.Mail (+ dark theme).
Mail.ru (+ dark theme).
Gmail.
Outlook.
Mobile devices. iOS 12.4.7 with a diagonal of 4 inches, applications
Yandex.Mail (+ dark theme).
Mail.ru (+ dark theme).
Gmail (+ dark theme).
Outlook (+ dark theme).
Spark.
Yahoo.
Built-in mail client "Mail".
If there is no note about the dark gambling database usa theme, then either it is not in the application, or it is there, but conditional: the letter code and colors in it do not change, only the interface becomes dark.
On average, testing one letter takes 10-20 minutes. Complex cases - up to 40 minutes.
Tests are not the most interesting part of the job, but they help us develop, find interesting solutions and make us stronger!
Download the full email layout checklist - it will help you make emails look beautiful in dark and light themes on all popular devices and email clients in Russia.