Such users include journalists, human rights workers, other workers who have to protect the data of the clients, staff dealing with medical information of their patients and businesses who need to be careful with their confidential intellectual property. This makes K-9 a suitable email application for users and organisations who want to be able to handle email securely and responsibly via mobile devices.

One such improvement is the ability to encrypt and decrypt email with the popular and well tested PGP encryption method. K-9 can connect to email servers using all popular methods, including POP3, IMAP and WebDAV protocols.īecause K-9 is an Open Source project, it makes it easy for other coders to add to the project and increase its security and other features. This ability to configure the application makes it great for people who get a lot of email and want to be able to manage it flexibly when you are on the move. K-9 Mail is an email application (app) for Android phones or tablets. K-9 supports multiple mailboxes, each independently configurable.

K9 mail client