Yet another hacking attempt – this time on our mail server
Tag: spam
How to reduce the numebr of nuisance landline calls
In our house we have subscribed to the “no-call list” – but we still seem to get a large number of telesales calls. And some calls with “unknown” pr “withheld” numbers that have called us at regular intervals during the night.
But as we use a Fritzbox to connect our wireless phones and other devices to the landline I set up the following rule on the Fritzbox
Now all unknown calls go directly to the Fritzbox answering machine, and if they are “real” calls we assume they will leave a message so that we can call them back.
It works remarkably well.
BT infinity – challenges
When you run your own mail server on your own domain and move to BT Infinity there are a few possible issues
– BT does not offer static IP addresses for the non-business version of Infinity
A lot of recipient mail servers will refuse to receive email from mail servers with dynamic IP addresses, as their spemfilters rely on tracking known spammers by the IP addresses they use.
So you will have to use BT Internets “smart host” = mail.btinternet.com to relay your outgoing mail through.
If you (as I) use a Mac running OsX as a mail server running postfix, this will not work out of the box, as the authentication mechanism used is plain text.
So you need the line
smtpd_sasl_security_options = no anonymous
in your main configuration file for postfix (in /etc/postfix)
Prank mobile phone calls
I just had a prank phonecall from a UK mobile phone number – 07518 840815 – feel free to distribute this number and call it…
Nice trick if you can do it
From one of my many, many spam emails – they seem to sell a timemachine :
Spammers adapting shortened URLs
Groan – spam is mutating again :
Spammers using shortened URLs to spread their muck Message Labs – part of internet security guru Symantec – is warning that shortened URLs are becoming an issue in terms of spam. This graph shows how the inclusion of shortened URLs in spam email has increased from practically nothing a to almost 2% in just a few days: [From Spammers using shortened URLs to spread their muck]
Are you a switched on parent
From one of the government organisations on how to protect your children online I found thsi question in one of their Quiz’es
SPIM????
I suspect they really meant SPAM.
ASSP spamfilter has some new capabilities
My favorite spamfilter – ASSP – has some new facilities in the latest version.
My favourite these days is the ability to send a email to the dummy address “asspblock” in the format “user@server=>receivinguser” sends you a detailed list of all emails for the particular user that have been blocked, and gives the receiving user the ability to forward these messages to the user…
(Click for larger)
Spam on this server
I should obviously stop writing about the amount of spam our little mailserver receives, as the amount as gone up by approx. 300% since last time I wrote about it :
This is just mindblowingly stupid – 98.3% spam!!! and 2350 emails per day!
We’re being spam bombed at the moment
From our spamfilter :
107 spam emails in 44 minutes! Wow!