JKMail Security
Protect hosted email through authenticated submission, encrypted access and layered anti-abuse controls.
Mail authentication
Mailbox users should use strong unique passwords and encrypted authentication paths for supported SMTP submission and IMAP access.
Spam filtering
JKMail uses Rspamd in the current mail architecture to evaluate spam and policy signals before final mailbox delivery.
Temporary rejection
Anti-abuse policy may use temporary SMTP responses such as greylisting. Standards-compliant sending servers normally retry temporary failures.
Mail DNS
SPF, DKIM and DMARC should be configured according to the real sending architecture of each mail domain.
Supporting services
Supporting databases, Redis and private mail-administration interfaces should not be unnecessarily exposed to the public Internet.