Here are the commands to create a summary for the current Rmail file. Once the Rmail file has a summary buffer, changes in the Rmail file (such as deleting or expunging messages, and getting new mail) automatically update the summary.
rmail-summary ). rmail-summary-by-labels ). rmail-summary-by-recipients ). rmail-summary-by-topic ).
The h or C-M-h (rmail-summary ) command fills the summary buffer for the current Rmail file with a summary of all the messages in the file. It then displays and selects the summary buffer in another window.
C-M-l labels RET (rmail-summary-by-labels ) makes a partial summary mentioning only the messages that have one or more of the labels labels. labels should contain label names separated by commas.
C-M-r rcpts RET (rmail-summary-by-recipients ) makes a partial summary mentioning only the messages that have one or more of the recipients rcpts. rcpts should contain mailing addresses separated by commas.
C-M-t topic RET (rmail-summary-by-topic ) makes a partial summary mentioning only the messages whose subjects have a match for the regular expression topic.
Note that there is only one summary buffer for any Rmail file; making one kind of summary discards any previously made summary.
The variable rmail-summary-window-size says how many lines to use for the summary window.