quite detailed (in german) analysis here.

Sorry, but you don’t understand open source or the GPL.

i use 5 different mail addresses at once, some of them are encrypted using PGP, some are not.
I have individual signatures, sometimes several per mail account.
I can preset mails offline, don’t have to rely on five different web interfaces and can connect a central address book and calendar to all accounts.

I use thunderbird.

Original Aleppo soap. Need about 3-4 pieces of it per year, they are odorless, or at least smell only slightly earthy.
Price here 4-6 euros per piece.
I use them for the face and my (arm-length) hair.