Hi to all, I configured a ispconfig half year ago and all need all works fine but local usernames like root or uucp can recieve mails from all localdomains configured in postfix. I have an alias from root to my account and in the begining of the server I recieved few mails but every day I have more domains and it starting to be heavy because I recieve a lot of spam to [email protected], [email protected]... At anyone occurs the same? Can anyone help me? Some thanks in advance
In main.cf i have: alias_maps = hash:/etc/aliases And I think I have a standard /etc/aliases, is a large file with names like: # General redirections for pseudo accounts in /etc/passwd. administrator: root daemon: root lp: root news: root uucp: root games: root man: root at: root postgres: root mdom: root amanda: root ftp: root wwwrun: root squid: root msql: root gnats: root nobody: root And one that points root to my local username.
Either remove that alias from /etc/aliases and run Code: newaliases afterwards, or turn on the spamfilter for your email account in ISPConfig.
Hi Falko, In action you comment, I only disable forwarding root mails to my user, but root will continue recieving mails from root@domain1, root@domain2 ... I was thinking in a make a black list of local usernames destinations maybe in spamassassin or in postfix, is it possible? Some thanks
Hi, I have been making different test and I look this: There are local usernames like: domain1.user11 domain2.user21 domain2.user22 And a virtusertable like: user11@domain1 domain1.user11 user21@domain2 domain2.user21 user22@domain2 domain2.user22 At this point all seems ok, but when I send a mail to domain2.user22@domain1 the mail arrives OK to domain2.user22. It seems like there aren't restrictions between usernames and domains, all localusernames can recieve mails at all domains. I revised postfix configuration, I disabled aliases sentence without solve the problem. Please, ¿anyone can make this kind of test and tell me the results? It a normal functionality of postfix/ispconfig? Some thanks in advance. Xavi
In my opinion, It shouldn't be like that, because it generates a lot of spam between usernames in diferent domains, don't you think so? Did you know if I can't do anything to solve this fact? actually my username recieves more than 100 spam daily, and I only have less than 10 domains in a box. Imagine when I have 30 o more domains, Is anybody in the same problem? Some thanks to all
One thing is the "light" configuration of postfix. You can e.g. check if the mail comes from dialuphosts and deny them (because if sb. sends mail from a server with a dynamic address its his own problem, but that you have to decide on your ow), as well as machines identifying with your server's address in HELO / EHLO. Mor than that you can also activate greylisting. All together it works really fine for me reducing spam.
But the big problem is that one user can recieve emails from other domains. How the big ISP using postfix solve this? thanks
Only if you use the real usernames in the email address, e.g. [email protected]. But normally you use some kind of email alias like [email protected].
I added spamhaus BL in smtp client restrictions in main.cf and seems I recieve less spam. Some thanks to all for the replies
