How to solve special characters in Outlook for email Templates?

[toplisek]

I have seen and tested many times but seems Outlook has some different way to read messages in newsletters.

How to arrange that spec. characters will be seen in Subject?

I have issue for some languages like ¹è¾ðæ.
What code to put for Subject that will work?
Thunderbird works without any issue.

Need help.

[coopster]

Likely the character set and encoding you use when preparing the headers for the mail message. I would start with RFC2822 (also see the PHP mail [php.net] function manual page).