Archive for the ‘Spam’ tag
You’ve got more storage, for spam!
Good news for spammers all around the world: Now most Yahoo! users have a big mailbox. You can fill it up with 250 meg of pure spam! And I bet Yahoo! will help you out.
I have a Yahoo! account since 1998, but I never use my Yahoo! email address ( I have my own domain for web and mail since 1999 ). But everytime, once in a while, when I check my Yahoo mail its full if spam and unsolicited messages.
So this storage upgrade is not a good new for me (and most of users), but for spammers.
Blackholing spammers using BGP
Today I came across the idea to blackhole spammers and open relays using BGP.
Despite the minor problems it may cause, it will help to solve a big problem.
Taking such aggressive actions like completely blocking a host or even a network for a whole week will make network administrators to take spam issue more serious. If someone forgot (or even worse, is unable) to secure his mail or proxy server, this is his problem not ours. And network administrators should know that they have to act against open relay and proxies in their network with high priority among their tasks.
Anyway, searching in google turned out that my genuine idea is not genuine at all and this is something that Paul Vixie has been working on it since 1997.
His efforts is available as MAPS. Beside their DNSBL service they also offer a BGP feed that does that same as I mentioned. Subscriptions is required to use these BGP feeds.
Yahoo! Spam Filter
I am pretty sure that Yahoo! passes some spam messages by purpose.
I have a Yahoo! email account that I do not use at all. But like other email accounts, it
When SANS sends you advertising email…
I just unsubscribed from SANS Portal Security Alert Consensus newsletter today, because I found that they are spamming me!
Here is how:
Another tip to block spammers using Postfix
Steve Freidl has posted another useful tip to block spammers using Postfix.
It explains that many times spammers does not specify their real hostname in HELO or EHLO smtp commands, they use YOUR address instead! So you can easily block them using some simple rules in postfix to reject connections that identify theirself as you!
Read it here.
