If you've got troubles with mails, often mail-headers help to find out what the problem could be.

Each mail-client hides the mail-headers in a different location, here some links to help you find the mail-headers:

Outlook 2007 / 2010 / 2013 (english)

Outlook 2010/2013 / 2007 / 2003/2002/2000 / GMail (english)

Outlook Express / Outlook 2010 / Windows Live Hotmail/MSN / GMail / Yahoo! Mail / Apple Mail (english)


Outlook 2010 (german/deutsch)

Mozilla Thunderbird / Outlook 2010 / Outlook Web App (OWA) (german/deutsch)

Apple Mail / Outlook 2010 / Mozilla Thunderbird / Windows Live Mail (german/deutsch)


Actually i "just" needed a list of all countries with their area code and a column to know if its landline or mobile. This way i could use it for asterisk to know if calling landline or mobile (thus selecting different routes). Googling for area-code lists on the web takes you to lists like this one which are quite nice but not mentioning mobile destinations. But there is a neat list available at SIL's website. Copied it over to LibreOffice Calc and saved it as CSV. Nearly perfect, just that all lines for mobile numbers have mostly more than one number for mobile...


set dnsmasq to listen only on local ip instead on all available interfaces:

root@tplink:~# netstat -tln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0    *               LISTEN
tcp        0      0   *               LISTEN
tcp        0      0    *               LISTEN
tcp        0      0  *               LISTEN
tcp        0      0   *               LISTEN

After i've set up a GSM-VoIP Gateway to forward calls via SIP, i wanted to see the caller name too instead just the calling number. I guess there are sure ways to import contacts into a PBX like Asterisk, that way you would need to keep it up-to-date by importing contacts over and over again what is simple but not practical. Maybe there are even modules available to work with Google, but i was lazy tinkering with Asterisk and just quickly wrote a bash script to do that job and even notifying me via mail.