$headContent

Features

Feature Status 3.x 2.3.x Since First released
SMTP Stable yes yes 1.0 0.95
POP3 Stable yes yes 1.1 1.0
IMAP Stable yes no 3.0 3.0
JMAP Experimental yes no 3.0 3.0
LMTP Stable yes no
ManageSieve Experimental yes no 3.0.0 3.0.0
NNTP Dropped (3.x) no yes 1.2 1.2
TLS POP3/SMTP/IMAP Stable yes yes 1.2 1.2
Mailing List Dropped (3.x) no yes
FetchMail Experimental yes yes 2.2 2.2
Mailet Container Stable yes yes 2.3 0.95
Remote Manager Stable yes yes 1.0 1.0
Management via JMX Experimental yes yes
TLS Remote Manager Dropped (3.x) yes yes 1.2 1.2
JPA Mailbox Legacy yes no
Cassandra Mailbox Stable yes no 3.0.0 3.0.0
Lucene search Legacy yes no
OpenSearch search Stable yes no 3.0.0 3.0.0
Simple search Stable but not advised yes no 3.0.0 3.0.0
File Mail Store Stable yes yes 1.2 1.0
JPA Database Mail Store Experimental yes no
JPA Users Stable yes no 1.2.1 1.2.1
Cassandra Users Stable yes no 3.0.0 3.0.0
LDAP Users Stable yes yes 1.2 1.2
ActiveMQ Queue Stable yes no
RabbitMQ Queue Stable yes no
Integration with SpamAssassin Stable yes partial
SIEVE scripts Experimental yes no 3.0.0 3.0.0
Monitoring via JMX Experimental yes yes
IP V6 Experimental partial no
Java 1.21 Requirement yes no