Note: to use the features described in this article, you must have the mailbox.org Guard offers comprehensive options for the management of your OpenPGP key ring. You can find these on the mailbox.org settings page (Guard PGP Settings).enabled.
Note: The mailbox.org Guard is designed to work with your main email address. It is not intended to be used in combination with aliases.
The mailbox.org Guard provides an administration for your own PGP keys and the public PGP keys of your communication partners. You can find this administration in your mailbox.org office under "Settings -> mailbox.org Guard Security":
Once mailbox.org Guard is enabled, two pairs of keys will be created. The keys are then used automatically by the software such that users do not normally need to concern themselves with them.
Additional you may manage the public keys of you communication partners with the addressbook. Open the addressbook entry. You can upload a public key with a click on the "+" symbol in the public keys list.
Supported maximum size of key files