Go to next mail in Message List. The Down arrow does the same.

`↓`

All hotkeys for Claws Mail

Compose window Move a previous line	`Ctrl` + `P`
Compose window Close	`Ctrl` + `W`
Main window Synchronise folders	`Ctrl` + `↑ Shift` + `S`
Compose window Save	`Ctrl` + `S`
Main window Exit	`Ctrl` + `Q`
Compose window Copy	`Ctrl` + `C`
Compose window Select all	`Ctrl` + `A`
Compose window Move a character forward	`Ctrl` + `F`
Main window Search folder...	`↑ Shift` + `Ctrl` + `F`
Main window Toggle threaded display	`Ctrl` + `T`
Main window Go to next mail in Message List. The Down arrow does the same.	`N`
Main window Go to next mail in Message List. The Down arrow does the same.	`↓`
Main window Go to previous mail. The Up arrow is a synonym.	`P`
Main window Go to previous mail. The Up arrow is a synonym.	`↑`
Main window Go to next unread mail.	`↑ Shift` + `N`
Main window Go to previous unread mail.	`↑ Shift` + `P`
Main window Go to other folder…	`G`
Compose window Delete line	`Ctrl` + `U`
Compose window Delete a character backward	`Ctrl` + `H`
Main window Toggles the message view panel visibility. When invisible, Message List expands itself to fill the full window height and more summary lines are displayed	`V`
Main window Positions the cursor on the Quicksearch field, also opening the Quicksearch panel if needed	`/`
Main window Update summary	`Ctrl` + `Alt` + `U`
Compose window Insert file	`Ctrl` + `I`
Main window Get mail from all accounts	`↑ Shift` + `Ctrl` + `I`
Compose window Attach file	`Ctrl` + `M`
Main window Reply	`Ctrl` + `R`
Main window Reply to all	`↑ Shift` + `Ctrl` + `R`
Compose window Wrap current paragraph	`Ctrl` + `L`
Main window Forward message	`Ctrl` + `Alt` + `F`
Main window Move...	`Ctrl` + `O`
Main window Copy...	`↑ Shift` + `Ctrl` + `O`
Compose window Delete a character forward	`Ctrl` + `D`
Main window Empty all Trash folders	`↑ Shift` + `D`
Main window Mark message	`↑ Shift` + `*`
Main window Unmark message	`U`
Main window Mark message as unread	`↑ Shift` + `!`
Compose window Open address book	`↑ Shift` + `Ctrl` + `A`
Main window Execute	`X`
Compose window Toggle auto wrapping	`↑ Shift` + `Ctrl` + `L`
Main window Toggles menu bar visibility	`Ctrl` + `F12`
Main window Full screen	`F11`
Compose window Send	`Ctrl` + `⤶ Enter`
Compose window Send later	`↑ Shift` + `Ctrl` + `S`
Compose window Insert signature	`Ctrl` + `G`
Compose window Undo	`Ctrl` + `Z`
Compose window Redo	`Ctrl` + `Y`
Compose window Cut	`Ctrl` + `X`
Compose window Paste	`Ctrl` + `V`
Compose window Move a character backward	`Ctrl` + `B`
Compose window Move to end of line	`Ctrl` + `E`
Compose window Move a next line	`Ctrl` + `N`
Compose window Delete to end of line	`Ctrl` + `K`
Compose window Wrap all long lines	`Ctrl` + `Alt` + `L`
Compose window Edit with external editor	`↑ Shift` + `Ctrl` + `X`