AdGuard Temp Mail’s addresses are temporary and aren’t stored long by design:
Emails are automatically deleted 24 hours after you receive them.
A temporary mailbox is deleted after 7 days of inactivity. But if you keep the page open or come back in a couple of days, it won’t disappear.
AdGuard Temp Mail is currently in beta stage. Here’s what we’re planning to add in the future:
Zero-access encryption
TLS support on the SMTP server side
Image proxying
Security checks for links
That comment is just speculation… In fact many of the Adguard employees are from Ukraine and other not so pro Russian countries. I remember their support being almost stale when the war started.