search for: dnsbls

...it:]]+\]: cache: (purged|deleted) [^[:space:]]+ from HAM cache$ -^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix/policyd-weight\[[[:digit:]]+\]: decided action=(450 |550) (Mail appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to correct HELO and DNS MX settings or to get removed from DNSBLs(; (in [^[:space:]]+|MTA helo: [^[:space:]]+, MTA hostname: [^[:space:]]+ \(helo/hostname mismatch\)|please relay via your ISP \([._[:alnum:]-]+\)))*|Your MTA is listed in too many DNSBLs; check [^[:space:]]+|temporarily blocked because of previous errors - retrying too fast\. penalty: [[:digit:]]+...

dnsbl's are a popular method to prevent listed ips from making connections to mta software. cf. postscreen_dnsbl_sites in postfix Would it be possible to introduce such a feature in dovecot, so that connections can be denied based on a dnsbl lookup (where the precise dnsbls used are configurable)? John

...would also be useful to CC this mail and your reply to the centos-docs mailing list for reference. To be honest, I'm no longer running that amavisd setup on my server, so yes, some help checking, adding to and maintaining that page would be great. I found that the postfix restrictions and DNSBLs I run are so effective that post-filtering is completely unnecessary for my setup so I disabled it. I had planned on adding a section on testing with the amavisd test samples at the end but never got around to it. Regarding SELinux, I've recently finished a guide that can be referenced: h...

Dear All, I am sorry for the post here but really apprecite if someone could help me or advise. actually i just could not subscribe to sendmail mailing list I have the following setup for a long time on a single computer Centos server running as my primary Mail & Dns server CentOS release 5 (Final) sendmail-8.13.8-2.el5 bind-9.3.4-6.0.3.P1.el5_2 MailScanner (4.76.25) Mailwatch 1.0.4 I had

...'t matter > > if i blacklist a client because he starts a dictionary attack in SMTP i want it also bock on IMAP without use a dozen of different tools because teh via IMAP now catched account password will be used for send spam later when the SMTP RBL entry expires That?s the point why DNSBLs are good: You can use them for many different services at once. However, the idea is to block attackers before they are able to succeed identifying a valid login credential AND not to block your customers that expect a service that just works. This is a trade off. If both the attacker (or a malware...

julie70773 [at] loverhearts.com Responded off-list to message on the list, spam with content that is not suitable for minors. It is possible subscribed under different address. IP of offending spam : Received: from mx2.loverhearts.com (mx2.loverhearts.com [45.55.128.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by

I wonder if there is an easy way to provide dovecot a flat text file of ipv4 #'s which should be ignored or dropped? I have accumulated 45,000+ IPs which routinely try dictionary and 12345678 password attempts. The file is too big to create firewall drops, and I don't want to compile with wrappers *if* dovecot has an easy ability to do this. If dovecot could parse a flat text file of

On 03/03/2015 11:03 PM, Earl Killian wrote: > On 2015/3/2 10:03, Reindl Harald wrote: >> >> that is all nice >> >> but the main benefit of RBL's is always ignored: >> >> * centralized >> * no log parsing at all >> * honeypot data are "delivered" to any host >> * it's cheap >> * it's easy to maintain >> * it

what anti-spam for you used ? dspam?spammassian? amavisd-new ? what is best ?

Hello, I''ve recently begun looking at Puppet as an alternative to Cfengine and I have a couple of questions. 1) Besides the information posted on the Puppet website, are there any critical differences between Puppet and Cfengine? 2) Does Puppet allow for client-specific file text manipulation. For instance, in Cfengine I can add a line of text to a file if the line doesn''t