Android

yes

Instructions for importing and/or installing certificates can be found in the manufacturer’s documentation, if applicable.

Windows Phone

?

No documentation available online

Blackberry

10 and higher

yes / no

According to the Support team, Blackberry has a general problem with signed and encrypted emails. Currently, the timeframe for the rectification of this problem is unknown. The error behaviour of, for example, signed emails on Blackberry devices varies and is unpredictable. For example, when replying to a signed email from the Blackberry client, the reply text may disappear when the recipient opens it.

iOS (Apple)

yes

Instructions for importing and/or installing certificates can be found in the manufacturer’s documentation, if applicable.