Re: Block sending from non-US IPs

2012-10-18 Thread /dev/rob0
On Thu, Oct 18, 2012 at 10:24:43PM +0200, mouss wrote: > and really, you should only look at this once you analyzed the > situation for more "neutral" approaches, such as: mail submission > should require authentication. this does not solve all problems, > but if your authnetication is compromis

Re: Block sending from non-US IPs

2012-10-18 Thread Patrick Lists
On 10/18/2012 10:24 PM, mouss wrote: you can try http://countries.nerd.dk/more.html you can also try GeoIP. Also check out http://ipdeny.com/ Regards, Patrick

Re: Block sending from non-US IPs

2012-10-18 Thread mouss
Le 17/10/2012 22:41, Thomas E Lackey a écrit : > I am looking into a system where one of the [virtual] mail accounts was > compromised. > > Apparently the account, once compromised, was used to send spam from > overseas hosts. Since the company has no overseas users, they asked if > it were poss

Re: Block sending from non-US IPs

2012-10-18 Thread Ralf Hildebrandt
* Thomas E Lackey : > I am looking into a system where one of the [virtual] mail accounts was > compromised. > > Apparently the account, once compromised, was used to send spam from > overseas hosts. Since the company has no overseas users, they asked if > it were possible to block outbound/rela

Re: Block sending from non-US IPs

2012-10-17 Thread CSS
On Oct 17, 2012, at 4:51 PM, /dev/rob0 wrote: > On Wed, Oct 17, 2012 at 03:41:08PM -0500, Thomas E Lackey wrote: >> I am looking into a system where one of the [virtual] mail accounts >> was compromised. >> >> Apparently the account, once compromised, was used to send spam >> from overseas host

Re: Block sending from non-US IPs

2012-10-17 Thread /dev/rob0
On Wed, Oct 17, 2012 at 03:41:08PM -0500, Thomas E Lackey wrote: > I am looking into a system where one of the [virtual] mail accounts > was compromised. > > Apparently the account, once compromised, was used to send spam > from overseas hosts. Since the company has no overseas users, they > a