Re: Strong Ciphers to use with Postfix

2017-02-17 Thread Daniel Bareiro
On 17/02/17 12:46, L.P.H. van Belle wrote: > Hai, Hi, Louis. > It all depends all in what you need and want. > > After monitoring for about a year on with or without encryption. > I have 0 unecrypted mail servers found and a handfull of SSLv2 or V3. > Which i simply dont allow anymore. ( T

Re: Strong Ciphers to use with Postfix

2017-02-17 Thread Viktor Dukhovni
On Fri, Feb 17, 2017 at 12:44:35PM -0300, Daniel Bareiro wrote: Do not confuse opportunistic TLS in SMTP with browser to webserver TLS in HTTPS. In the name of improving security such settings make your MTA less secure. There are still many systems that can only do TLS 1.0 and not TLS 1.1 or TLS

RE: Strong Ciphers to use with Postfix

2017-02-17 Thread L . P . H . van Belle
DH, AECDH, MD5, DSS, ECDSA, CAMELLIA128, CAMELLIA256, 3DES #, RSA+AES smtpd_tls_eecdh_grade = ultra Greetz, Louis > -Oorspronkelijk bericht- > Van: domi...@timedicer.co.uk [mailto:owner-postfix-us...@postfix.org] > Namens Dominic Raferd > Verzonden: vrijdag 17 februari 2

Re: Strong Ciphers to use with Postfix

2017-02-17 Thread Daniel Bareiro
On 17/02/17 11:43, Fazzina, Angelo wrote: > Hi, Hi, Angelo. Thanks for your prompt reply. > Here is how I am dealing with "weak ciphers" > You may be able to do the same type of config ? > > > In /etc/postfix/main.cf > > > # -ALF 2016-09-07 > # disable RC4 ciphers with TLS connections. > #

Re: Strong Ciphers to use with Postfix

2017-02-17 Thread Dominic Raferd
On 17 February 2017 at 14:43, Fazzina, Angelo wrote: > Hi, > Here is how I am dealing with "weak ciphers" > You may be able to do the same type of config ? > > > In /etc/postfix/main.cf > > > # -ALF 2016-09-07 > # disable RC4 ciphers with TLS connections. > #smtpd_tls_exclude_ciphers = RC4, aNULL

RE: Strong Ciphers to use with Postfix

2017-02-17 Thread Fazzina, Angelo
Hi, Here is how I am dealing with "weak ciphers" You may be able to do the same type of config ? In /etc/postfix/main.cf # -ALF 2016-09-07 # disable RC4 ciphers with TLS connections. #smtpd_tls_exclude_ciphers = RC4, aNULL # -ALF 2017-01-09 # disable weak ciphers, and RC4 ciphers smtpd_tls_excl