AnsweredAssumed Answered

Outlook Macbooks not work after disable DES-CBC3-SHA

Question asked by Evandro Barbosa on Dec 18, 2015
Latest reply on Dec 18, 2015 by Rob_T

Good afternoon,

 

The information security team recommended disable DES-CBC3-SHA.

 

 

 

following the recommendations we disabled TLS_RSA_WITH_3DES_EDE_CBC_SHA and I restarted my mail Server (Exchange 2010 SP3 Rollup 11).

 

I noticed that the outlooks of mac devices no longer works.

 

I am only with TLS enabled:

 

1.0

1.1

1.2

 

Cipher Suites

 

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)

TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)

TLS_RSA_WITH_AES_256_CBC_SHA (0x35)

TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)

TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)

 

 

 

I need help to meet the recommendations and keep the outlook of macs working.

Outcomes