Folder Handling

Using the MailClient you can list folders, check their presence, as well as create and delete them:

jmail_folderops.png

Operations expecting a folderPath argument will treat this the following way:

Folder Path

Description

 Example

NULL

This is interpreted as meaning the <Inbox> folder.


path beginning with /

This is interpreted as a path from the mail connections root folder.

/Archive/Orders

path not beginning with /

This is interpreted as a relative path to the <Inbox> folder, so translates to /<Inbox>/Archive/Orders.

Archive/Orders

The intention of this behavior is to abstract away the fact that <Inbox> has many different names depending on the connection, i.e. IMAP typically uses INBOX, Exchange calls it Inbox, and a German Exchange calls it Posteingang.

Also note that POP3 does not support folders other than <Inbox>. Hence when you specify a POP3 connection, folderPath parameters other than NULL will raise an exception.

Operations

listFolders


Parameter

Types

Direction

Description

Allowed Values / Example

connection

JavaMail Library Reference | JavaMailLibraryReference Connection

in

Specify the Connection object defining the mail server connection parameters to use (see

Mail Server Connection

).


parentFolder

String

in

Specify the path to the parent folder. See note regarding

folder handling

.

NULL

List folders below <Inbox>.

\

List folders below root folder.

a path

List folders below given path.

folders

Array of String

return

Returns a recursive list of sub-folder paths.

  • orders

  • orders/incoming

  • orders/incoming/accepted


existsFolderPath


Parameter

Types

Direction

Description

Allowed Values / Example

connection

JavaMail Library Reference | JavaMailLibraryReference Connection

in

Specify the Connection object defining the mail server connection parameters to use (see

Mail Server Connection

).


folderPath

String

in

Specify the path to the folder to check. See note regarding

folder handling

.

orders/outgoing

exists

Boolean

return

Returns if the given folder is existent on the mail server.

true

Folder exists.

false

Folder does not exist.


createFolderPath


Parameter

Types

Direction

Description

Allowed Values / Example

connection

JavaMail Library Reference | JavaMailLibraryReference Connection

in

Specify the Connection object defining the mail server connection parameters to use (see

Mail Server Connection

).


folderPath

String

in

Specify the path to the  folder to be created. See note regarding

folder handling

.

orders/outgoing


deleteFolderPath


Parameter

Types

Direction

Description

Allowed Values / Example

connection

JavaMail Library Reference | JavaMailLibraryReference Connection

in

Specify the Connection object defining the mail server connection parameters to use (see

Mail Server Connection

).


folderPath

String

in

Specify the path to the  folder to be deleted recursively. See note regarding

folder handling

.

  • orders/incoming/accepted
    Delete folder accepted from folder incoming.

  • orders
    Delete folder orders and all sub-folders and contents.


Related Pages: