Over the past few weeks I've been hardening rspamd on an ISPConfig 3.3.x server managing 38 mail domains and discovered three separate security...
Hi everyone, I've been running ISPConfig for long time (currently 3.3.0p3 with rspamd and 38 mail domains) and recently got hit by a phishing...
Given the recent increase in email sender spoofing I've been working on a Sieve filter to deal with emails that pass SPF, DKIM and thus DMARC...
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