Installing a Let's Encrypt certificate for your qmail, dovecot and apache servers
Changelog Jul 25, 2026 (v. 4.0) hook scripts and below documentation completeley reviewed.- Added a new dehydrated-renew wrapper script to execute certificate renewal and perform service synchronization for SNI only when one or more certificates have actually changed.- Introduced a change flag...
Server Name Indication (SNI) for qmail and dovecot
Server Name Indication (SNI) is a TLS extension that enables a server to present different certificates based on the hostname requested by the client during the TLS handshake. In modern email environments, multiple domains frequently share the same IP address for SMTP,...

