Re: Limit the damage of a hacked sender acount

2017-06-23 Thread CSS
> On Jun 23, 2017, at 8:11 PM, Wietse Venema wrote: > > Daniel Miller: >> I had a couple of accounts with too simple passwords hacked. And obviously >> my mail server is entirely too efficient - I think about 50k spams got >> blasted out before I caught it (because we got in the DNSBL's). >>

Re: Limit the damage of a hacked sender acount

2017-06-23 Thread lists
Don't offer any unencrypted email accounts. That won't insure good passwords,   but at least it will stop leaks over public wifi. I had to dig back a bit ‎in my cranium for "driftnet". Never ran it myself, but supposedly it steals all sorts of unencrypted goodies.   Original Message   From: Dani

Re: Limit the damage of a hacked sender acount

2017-06-23 Thread Wietse Venema
Daniel Miller: > I had a couple of accounts with too simple passwords hacked. And obviously > my mail server is entirely too efficient - I think about 50k spams got > blasted out before I caught it (because we got in the DNSBL's). > > Separate from improving the password security - what can I do

Limit the damage of a hacked sender acount

2017-06-23 Thread Daniel Miller
I had a couple of accounts with too simple passwords hacked. And obviously my mail server is entirely too efficient - I think about 50k spams got blasted out before I caught it (because we got in the DNSBL's). Separate from improving the password security - what can I do to limit the damage a

Re: SMTP session failure: 501 5.1.7 - how to solve it ?

2017-06-23 Thread wilfried.es...@essignetz.de
Please read http://www.postfix.org/DEBUG_README.html#mail Willi Am 23.06.2017 um 11:32 schrieb Zalezny Niezalezny: > Dear Colleagues, > > > I have a problem with my Postfix/Mailman configuration. Basicly everything > is working fine except one thing. > > When I`m sending message to mailman

SMTP session failure: 501 5.1.7 - how to solve it ?

2017-06-23 Thread Zalezny Niezalezny
Dear Colleagues, I have a problem with my Postfix/Mailman configuration. Basicly everything is working fine except one thing. When I`m sending message to mailman admins: From: u...@example.com To: mailman-ow...@list.example.com Postfix generating SMTP session failure. Jun 23 10:59:25 2017 (

Re: Message not retransmitted immediately after opportunistic TLS handshake failure

2017-06-23 Thread Viktor Dukhovni
On Fri, Jun 23, 2017 at 01:48:29AM +, Nik Kostaras wrote: > Is there any value making this check optional with the use of a > configuration parameter, to specify the expected minimum timeout (0 to > disable the timeout check)? I think that a brief delay for the tiny fraction of sites that mis