Mailbox.org

Resources

• Webmail
• Support
• User forum

FAQ

Servers

• IMAP: imap.mailbox.org : 993 (TLS)
• SMTP: smtp.mailbox.org : 465 (TLS)

MTA-STS

• Mailbox.org has configured MTA-STS for its hosted domain.
  • Their policy
• For custom domains:
  • Example policy by user danielfisher.com
    • Related DNS record
  • Related forum thread

CalDAV credentials

• Server: https://dav.mailbox.org:443
• Username: Your primary mailbox address (e.g. max.mustermann@mailbox.org)
• Password: Your account password or, if MFA is used, an application password (Settings > Security > Application passwords; select “CalDAV/CardDAV” and add a new one)