Your username is 'username.here@castlemail.io' or 'username.here@customedomain.here' in the full form.
Standard access (available to both Standard and Premium users):
Webmail:
Mail Clients:
Consult your Client of choice documentaiton like Thunderbird, Mail.app (macos native) or windows clients.
Example Configuration of Apple Mail to CastleMail.io:
imap.castlemail.io Port 143 Uses STARTTLS
smtp.castlemail.io Port 587 (or sometimes 25) uses STARTTLS
Authentication method: Normal Password
Premium Access (includes access to PGP Encrypted emails, storage etc..:
Full featured suite if your account is enabled:
https://castlemail.io/appsuite
Mail Clients:
If your device supports it use Exchange Active Sync (EAS) options otherwise use IMAP & SMTP. The system does not support legacy (old) Exchange MAPI or EWS connections.
This system also supports Outlook and auto configuration on some workstations.
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