Messages in a folder must be marked before performing operations on them. To mark a message, tap the sender's avatar in the message list.

After messages have been marked you can do the following:

Deleting

To delete the messages, tap the  "Trash" icon.
If a message is in the Trash folder, then if you tap the "Trash" icon, the message will be permanently deleted from your mailbox. If a message is in a different folder, then if you tap on the "Trash" icon, the message will be moved to the Trash folder.  

Reporting Spam

To report the messages as spam, tap the  "Spam" icon. All subsequent messages from that sender will then be sent to your Spam folder.

If a message that you do not consider to be spam ends up in your Spam folder, then tap the  "Not spam" icon. Messages from that sender will no longer end up in your Spam folder. 

Moving a Message to a Different Folder

To move a message to a different folder, tap the  "Move" icon. Your mailbox's folder list will open. Touch the name of the desired folder . The message will be moved.

Flagging a Message

To flag a message for future action, mark it with the  "Flag" icon by clicking on the  "Flag" icon.

Marking as Read/Unread

To mark a message as read (unread), tap the  /   icon.

You can also use the quick action menu by sliding your finger from right to left across the message in the message list.