Cannot receive
Confirm IMAP host mail.lightdrive.one, port 993, SSL/TLS, and the full email address as username. Check the mailbox quota and Spam folder.
Cannot send
Confirm SMTP host mail.lightdrive.one, port 587, STARTTLS, and authentication with the full email address. Recovery-email verification must be complete, and the account must permit outgoing mail.
Password rejected
Test the account in Vault webmail. If webmail works, remove the client’s saved credential and enter a current Email client password from Settings → Security → App & device access. The main Vault password and Vault app passwords do not authenticate to email. If webmail also fails, sign out and sign back in to the Vault; reset the main password only if Vault sign-in fails.
Certificate warning
Do not bypass it. Confirm the host is exactly mail.lightdrive.one and the device date is correct. Contact Support if the warning remains.
A message is waiting in Outgoing
Send waits for your selected delay (30 seconds by default); a scheduled message waits until its selected time. Use Send now in Outgoing to skip a remaining wait. Closing Email does not stop sending. If the message is overdue or says sending is paused, check its status in Outgoing and contact Support if it persists. For Delivery uncertain, check Sent and the recipient before sending another copy.
Undo succeeded but the editor did not open
The recovered message is in Drafts. Close the Outgoing dialog and open Drafts from the sidebar if Open Drafts does not navigate. If recovery could not be confirmed, check for an existing copy before trying recovery again. Outgoing recovery guidance.
A filter or automatic reply did not run
Test with a new incoming message and check that the rule is On. Review its conditions, order, and stop setting. For automatic replies, also check the schedule and days between replies to the same sender. Editing or toggling a reply does not reset its sender interval. If a custom folder disappears after mail is marked read, uncheck Only folders with unread mail.
All-message forwarding without a local copy skips Email filters. Turning all-message forwarding off does not turn off conditional forwarding rules. If the editor reports that another set of rules is active or rules were changed outside the editor, contact Support rather than replacing them blindly.