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Detect illegal UTF-8 encoded headers

Check the envelope-from address and compare it to the header From:-address. Reject mails, if both addresses do not match

Postfix policy service that does rate limiting for senders

Postfix-Submission policy server that checks sender IPs and blocks senders, if they come from different countries or if they come from too many different IP addresses.

Avira SAVAPI command line client

SOGo docker image

Generate spamassassin and rspamd daily reports for used rules

Postfilx milter that rejects/fixes manipulated From:-header

Detect illegal UTF-8 encoded headers

A quarantine for rspamd using SQL as backend

SMIMEA Milter

Zabbix template to monitor many common mailserver services

This is a set of OpenLDAP schema files

DKIM key management for keys stored in OpenLDAP

S/MIME signing milter