mail goes into Yahoo's junk folder ?

[map007]

Hi,

I have recently installed Zimbra open source on Ubuntu , now i setup all the setting spf records and mx records but still mail goes into spam folder of remote mail server so please guide me how can solve this problem and also tell me how can i create domain key .....?

Thank you.

[uxbod]

Mail-DKIM and DKIMproxy

[dfriestedt]

DKIM sign w/ iredmail.

iredmail - Project Hosting on Google Code