(FYI, the word's monogamous, not monogamic; though I prefer monoamorous since monogamy implies the marriage model as well as the loving relationship model, rather than just the loving relationship model by itself. And it makes conversations on the topic messy.) I can respect that - so long as it's openly out there and all partners involved are always uncoerced and concenting. In fact, I almost thanked your post just on that comment alone - refrained from it because at the end of the day though, I don't know enough about you to be certain it's a thanks-worthy statement in context.

I think the reason this isn't gaining much traction is because there's already multiple email clients, other than Modest (the built-in one), and most developers who can improve it probably don't use it, or use it because they're satisfied with what features it has.

Me personally, I just don't like always being logged in, so I never ran into the problem. But I can more than understand the desire for more convenient secrecy. Perhaps try some of the other non-standard email clients. If any of them has an easy-to-use feature like that, great, if not, it's probably easier to submit a feature request to the one you like the most than to try to get people to develop one for Modest. But frak if I know. *Shrug*

Any 'ways' of doing what you're suggesting that I can think of (with my limited coding knowledge) would require at the very least changing some elements of Modest itself. Nothing you can do with just a script or settings tweeks. (Though you can probably have a script to log you in/out... It's still the same need to log in/out, but if you automated it'd be less of a pain in the ***.)