the only time it is ok is when it is backups that are superseded by new backups, or a trash storage where i put things manually, and even there i prefer to empty the trash manually too.
but this is just how i am used to working. i realize that i accept messages in irc disappearing if i don't log them too (but then i set up logs for quite a number of channels that matter to me), and i could accept this service for certain use cases like for mailing lists which are usually archived elsewhere anyways.
but i could not use it for emails from family, friends or customers who might send me things that i want to keep.
furthermore, if you consider encrypted email you can't even tell what is an attachment and what is the body. removing the attachment would also affect unencrypted, but signed emails.
I understand the importance of attachments. But it's the only way to make email hosting cheap or free, bc attachments occupy 99,9% of disk space.
But anyone who tries to auto-delete my attachments will never get my patronage.
Why do you want to cripple email to create a free service? This seems like a race to the bottom, with very little upside for you.
Limiting attachments - the only possible way for free ADs-based alternative.
Mail search - will be offered. But old emails w/o attachments.
Is it okay for you?