But to answer OP: you cannot ever delete gmail message. Even spam is kept forever to comply with LE, since some of your real messages could by accodent go to junk. With Proton once I delete a message, its gone forever since it was part of my internal encrypted blob of messages. once I logged off deleted message is gone.
Do you really believe Gmail and your personal server possess the same value as targets?
>"you cannot ever delete gmail message. Even spam is kept forever to comply with LE"
Do you have a citation for this?
That's also the point. :) Why put your data into a service that has higher chance of being targetted (and you may never know if it was). Also if you're in control of the device, you'll be the one receiving the subpoena/search warrant (or a swat team), so you'll know if it was targetted.
https://www.washingtonpost.com/world/national-security/nsa-i...
Lastly for all Protonmail's righteous talk about governments. They're own /24 is announced by an Israeli company that does defense contracting[1] and has their own hardware division - the RAD Bynet Group who makes lots of network hardware including hardware that does deep packet and SSL inspection[2]. Proton mails seems to like to brush this off but for a company that wants to position itself as a player in the fight against government intrusion into privacy, it has a pretty bad smell.
https://bgpview.io/prefix/185.70.40.0/24
http://www.bynet.co.il/en/defense/
https://cryptome.org/2015/11/protonmail-ddos.htm
[1] https://www.crunchbase.com/organization/bynet-data-communica...
https://protonmail.com/support/knowledge-base/protonmail-isr...
