You could start your letter in Icelandic with the following formula:
Ágæta Guðrún (female)
Ágæti Jón (male)
If you would know the adressee a little better, you could use:
Kæra Guðrún
Kæri Jón
Just let me know if you need anything else.
Best regards,
Rsmelt (talk) 19:23, 24 October 2008 (UTC)Reply