Re: Postfix backscatter HELP !!!

2021-02-02 Thread George Papas
Thanks guys in the mean time I found the way to do it by trial and error and works OK now On 2/2/21 8:12 PM, Viktor Dukhovni wrote: On Tue, Feb 02, 2021 at 12:27:40PM +0200, George Papas wrote: # Do not indent the patterns between "if" and "endif". if /^[> ]*Received:/ /^[> ]*Received: +from

Re: Postfix backscatter HELP !!!

2021-02-02 Thread Viktor Dukhovni
On Tue, Feb 02, 2021 at 12:27:40PM +0200, George Papas wrote: > # Do not indent the patterns between "if" and "endif". > if /^[> ]*Received:/ > /^[> ]*Received: +from +ip53\.ip-139-99-176\.net / > reject forged sender name in Received: header: $1 > endif The above syntax is wrong. The "reject ..

Re: Postfix backscatter HELP !!!

2021-02-02 Thread Wietse Venema
George Papas: > Hi > > I have a small? SMTP server for around 35 users in the company I work . > > The last 3 -4 days I'm being bombed with backstatter? mails from all > over the world . > > I have found out the abusing IP who sends the messages as one of my > accounts but > > I cant find out

Postfix backscatter HELP !!!

2021-02-02 Thread George Papas
Hi I have a smallĀ  SMTP server for around 35 users in the company I work . The last 3 -4 days I'm being bombed with backstatterĀ  mails from all over the world . I have found out the abusing IP who sends the messages as one of my accounts but I cant find out how to stop bombing my server wi