After some further use of the mail client on N950 (beta2), I noticed some further points:

- the "My name" field in account settings seem to have no effect: I have put my full name (Jeremy Lainé - note the accent) but the "From" field of the messages I send just contains my e-mail address.

- the "Signature" field in account settings also seems to be ignored: I have entered my signature and the checkbox/slider "Include signature" is checked (i.e blue and to the right-hand side), but my outgoing messages don't have a signature

- when replying to an email, an extra carriage return before the quoted text would be welcome, otherwise my text gets stuck to the "XXX wrote:" line