Hi, I installed Scalix with Spamassassin and Spamass-milter on CentOS 5.0.
I did the installation as what manual says.Everything works fine except the receiving part. I do receive mails and block some spam mails.
Some suggested spam mails were put into spam folder.
Problem 1:
I did a redirect for all my emails.
The problem is in the received emails, some detected as spam mail can not be sent out.
and information is given as:
because: A mail transport failure occurred
550 5.7.1 Blocked by SpamAssassin
For example, I got 10 mails from outside. 5 are still spam mails. The spam mails are not blocked, but when they were redirected
to other mailbox, they were stopped by spamassassin. I think my spamassassin is not working when receiving emails, otherwise,
it will stop these spammails coming in.
Actually, I have already set up my smtpd.cfg file with spamassassin. In this file, I got
SMTPFILTER=TRUE
INPUT_MAIL_FILTER(`spamassassin', `S=local:/var/run//spamass.sock, F=, T=C:15m;S:4m;R:4m;E:10m')
What should I do to active spamassassin in receiving emails?
Problem 2:
This is not about Scalix system. It is about hacking our machines.
I checked the log and found someone is testing our mail server by sending a lot of emails to our server's invalid email address.
It is like they tried all possible email name combinations with *@company.com. These addresses do not exist.
Any one can help with block such attacks?
Thanks