putting postfix MTA 'on hold'

2009-01-18 Thread Luigi Rosa
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Is there a command line way to put temporary Postfix smtpd on hold, that is forcing it to reply "4xx Come back soon" to every incoming connection? It could be useful (for me) during weekly backup/maintenance/whatever operations. I admit that this re

Re: putting postfix MTA 'on hold'

2009-01-18 Thread Magnus Bäck
On Sunday, January 18, 2009 at 09:55 CET, Luigi Rosa wrote: > Is there a command line way to put temporary Postfix smtpd on hold, > that is forcing it to reply "4xx Come back soon" to every incoming > connection? While you could use smtpd_xxx_restrictions for this, it's better to use the tr

Re: putting postfix MTA 'on hold'

2009-01-18 Thread Luigi Rosa
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Magnus Bäck said the following on 18/01/09 10:44: > If you want to do maintenance of the > Postfix queue directories etc (i.e. something that would make message > reception a bad idea) you probably don't want Postfix to be running at > all. Yes, you

Restriction Upon IP

2009-01-18 Thread Jacky Chan
Dears, I have serveral digital senders (scanning machine) on site, which relay my Postfix 2.5 as default email gateway. From my requirment, they can only send mail to INTRANET, I need to restrict those machines from sending mails to Internet. Currently, I setup a user based restriction but with

Re: Restriction Upon IP

2009-01-18 Thread Noel Jones
Jacky Chan wrote: Dears, I have serveral digital senders (scanning machine) on site, which relay my Postfix 2.5 as default email gateway. From my requirment, they can only send mail to INTRANET, I need to restrict those machines from sending mails to Internet. Currently, I setup a user based re

Re: Restriction Upon IP

2009-01-18 Thread Jacky Chan
Noel Jones-2 wrote: > > Jacky Chan wrote: >> Dears, >> >> I have serveral digital senders (scanning machine) on site, which relay >> my >> Postfix 2.5 as default email gateway. From my requirment, they can only >> send >> mail to INTRANET, I need to restrict those machines from sending mails t

Re: Restriction Upon IP

2009-01-18 Thread Duane Hill
On Sun, 18 Jan 2009, Jacky Chan wrote: Noel Jones-2 wrote: Jacky Chan wrote: Dears, I have serveral digital senders (scanning machine) on site, which relay my Postfix 2.5 as default email gateway. From my requirment, they can only send mail to INTRANET, I need to restrict those machines from

Upon IP address, restrict sending destination.

2009-01-18 Thread Jacky Chan
Dear All, As subject. Does the following configuration meet the subject? 192.168.1.55 and 192.168.1.56 can only send mail to subdomain1.abc.com, subdomain2.abc.com And others IP in 192.168.1.0/24 can send mail to subdomain1.abc.com, subdomain2.abc.com and outsiders, is that achieved b

Re: Upon IP address, restrict sending destination.

2009-01-18 Thread Magnus Bäck
On Monday, January 19, 2009 at 05:11 CET, Jacky Chan wrote: > As subject. Does the following configuration meet the subject? > 192.168.1.55 and 192.168.1.56 can only send mail to subdomain1.abc.com, > subdomain2.abc.com > And others IP in 192.168.1.0/24 can send mail to subdomain1.abc.com, >

Re: Upon IP address, restrict sending destination.

2009-01-18 Thread Jacky Chan
Magnus Bäck wrote: > > On Monday, January 19, 2009 at 05:11 CET, > Jacky Chan wrote: > >> As subject. Does the following configuration meet the subject? >> 192.168.1.55 and 192.168.1.56 can only send mail to subdomain1.abc.com, >> subdomain2.abc.com >> And others IP in 192.168.1.0/24 can