It syncs locally by also can make server requests for things like snoozing/reminders/send later.
Not sure on the exact details of your account but if you send a quick note to [email protected] one of our engineers can look into it.
Is it possible to turn it off? I don't want these, but looks like I have effectively given you password to my email account. Can you remove it from your database?
The weird thing is, in last 15 minutes someone from USA - AWS instance, 35.167.235.231 - tried to connect to my account. This app is said to sync locally, right? But I see no attempts from my IP in Outlook.com panel, but about ten from AWS. All of these started when I installed Nylas and tried to configure it; remaining logins logged by Microsoft are 100% by me (web client, iPhone Mail.app). WTF?
edit: https://a.pomf.cat/gxhabs.png
2nd edit: According to https://github.com/nylas/nylas-mail/issues/3405#issuecomment... someone else is unable to connect with GMail because of Nylas servers throwing HTTP 502. Does it sync locally or through Nylas' AWS instances? Is this why I can't configure my account with IMAP?