we may want to add an explicit button for opening the sent-mails file pymailgui already does save sent messages to text file automaticallywhich may be opened currently with the list window' open button franklythoughthis feature may be too-well-kept secret-- forgot about it myself when revisited the program for this editionit might also be useful to allow sent-mail saves to be disabled in mailconfig for users who might never delete from this file (it can grow large fairly quicklysee the earlier prompt-for-deletion suggestion as wellthread queue speed tuning as mentioned when describing version changesthe thread queue has been sped up by as much as factor of in this version to quicken initial header downloads this is achieved both by running more than one callback per timer event and scheduling timer events to occur twice as often as before checking the queue too oftenhowevermight increase cpu utilization beyond acceptable levels on some machines on my windows laptopthis overhead is negligible (the program' cpu utilization is when idle)but you may want to tune this if it' significant on your platform see the list windows code for speed settingsand threadtools py in for the base code in generalincreasing the number of callbacks per event and decreasing timer frequency will decrease cpu drain without sacrificing responsiveness (and if had nickel for every time said that mailing lists we could add support for mailing listsallowing users to associate multiple email addresses with saved list name on sends to list namethe mail would be sent to all on the list (the to addresses passed to smtplib)but the email list could be used for the email' to header line see ' smtp coverage for mailing list-related examples html main text views and edits pymailgui is still oriented toward supporting only plain text for the main text of messagedespite the fact that some mailers today are more html-biased in this regard this partly stems from the fact that pymailgui uses simple tkinter text widget for main text composition pymailgui can display such messageshtml in popped-up web browserand it attempts to extract text from the html for display per the next notebut it doesn' come with its own html editor fully supporting html for main message text will likely require tkinter extension (orregrettablya port to another gui toolkit with working support for this featurehtml parser honing on related noteas described earlierthis version includes simple-minded html parserapplied to extract text from html main (or onlytext parts when they are displayed or quoted in replies and forwards as also mentioned earlierthis parser is nowhere near complete or robustfor production-level qualitythis would have to be improved by testing over large set of html emails better yet the pymailgui client