Steffen

Asked: 2015-12-20 02:14:25 +0800 CST2015-12-20 02:14:25 +0800 CST 2015-12-20 02:14:25 +0800 CST

How to disable RC4 on postfix?

I have make a security check of our postfix server on https://de.ssl-tools.net/mailservers and get a warning that "ECDHE_RSA_WITH_RC4_128_SHA" is still supported. But don't know how to disable that ...

1 Answers

Voted

Best Answer

Andrew Domaszek

2015-12-20T02:39:24+08:002015-12-20T02:39:24+08:00

Add to your main.cf:

# TLS Server
smtpd_tls_exclude_ciphers = RC4, aNULL
# TLS Client
smtp_tls_exclude_ciphers = RC4, aNULL

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