| Function | Description | Links |
| comp_ac_add() | Add a Mailbox to an Account | MxOps::ac_add(), mx_ac_add |
| comp_ac_owns_path() | Check whether an Account owns a Mailbox path | MxOps::ac_owns_path(), mx_ac_owns_path |
| comp_mbox_check() | Check for new mail | MxOps::mbox_check(), mx_mbox_check |
| comp_mbox_close() | Close a Mailbox | MxOps::mbox_close(), mx_mbox_close |
| comp_mbox_open() | Open a Mailbox | MxOps::mbox_open(), mx_mbox_open |
| comp_mbox_open_append() | Open a Mailbox for appending | MxOps::mbox_open_append(), mx_mbox_open_append |
| comp_mbox_sync() | Save changes to the Mailbox | MxOps::mbox_sync(), mx_mbox_sync |
| comp_msg_close() | Close an email | MxOps::msg_close(), mx_msg_close |
| comp_msg_commit() | Save changes to an email | MxOps::msg_commit(), mx_msg_commit |
| comp_msg_open() | Open an email message in a Mailbox | MxOps::msg_open(), mx_msg_open |
| comp_msg_open_new() | Open a new message in a Mailbox | MxOps::msg_open_new(), mx_msg_open_new |
| comp_msg_padding_size() | Bytes of padding between messages | MxOps::msg_padding_size(), mx_msg_padding_size |
| comp_msg_save_hcache() | Save message to the header cache | MxOps::msg_save_hcache(), mx_msg_save_hcache |
| comp_path_canon() | Canonicalise a Mailbox path | MxOps::path_canon(), mx_path_canon |
| comp_path_probe() | Is this a compressed Mailbox? | MxOps::path_probe(), mx_path_probe |
| comp_tags_commit() | Save the tags to a message | MxOps::tags_commit(), mx_tags_commit |
| comp_tags_edit() | Prompt and validate new messages tags | MxOps::tags_edit(), mx_tags_edit |
| compress_info_free() | Frees the compress info members and structure | |
| execute_command() | Run a system command | |
| lock_realpath() | Try to lock the Mailbox.realpath | |
| mutt_comp_can_append() | Can we append to this path? | |
| mutt_comp_can_read() | Can we read from this file? | |
| mutt_comp_init() | Setup Compressed Mailbox commands | |
| mutt_comp_valid_command() | Is this command string allowed? | |
| set_compress_info() | Find the compress hooks for a mailbox | |
| setup_paths() | Set the mailbox paths | |
| store_size() | Save the size of the compressed file | |
| unlock_realpath() | Unlock the mailbox->realpath | |
| validate_compress_expando() | Validate the Compress hooks | |
