If your only recipient is a single account on GMail and you never use the function of Protonmail to send encrypted messages to external users (like GMail users) then the security of all your mails probably depends on what Google offers and how the specific recipient protects his mails.īut, most users probably communicate with several recipients. if Gmail is not secure enough, then what's the point of sending an email to Gmail from ProtonMail instead of just keep using Gmail (given that it has extra features)? don't use some non-Google mail server to deliver the mails). I would instead suggest that GMail to GMail is more secure then some random mail provider to GMail as long as you stay within the Google infrastructure (i.e. I understand that Gmail to Gmail is not very secure Maybe use signal on your phone for really really sensitive messages, and gmail with two factor for the rest. Then again, if you sync your email to your personal device, or your computer is compromised, then your proton mail is also compromised. If you sent the message to Hillary Clinton's basement email server, then the cleaning lady could have taken the hard drive. However, if you had sent the messages to yahoo in the past, then the NSA had a tap on yahoo's network, and that would not have been very safe, unless you don’t care if the NSA reads your mail. It's likley that protonmail uses TLS to communicate with gmail, and again, gmail's pretty darn safe. Yeah, once you send the message outside of the protonmail ecosystem it's only as secure as the least secure link. Why should I use ProtonMail if the recipient uses Gmail? How is this more secure? I mean, if Gmail is not secure enough, then what's the point of sending an email to Gmail from ProtonMail instead of just keep using Gmail (given that it has extra features)? But there is one thing I don't quite understand: On the other hand, ProtonMail is a very good option with great features. Do you care that a handful of people who work for google and the government can read your messages? If not, then gmail's great. I understand that Gmail to Gmail is not very secure.ĭepends on the threat.