Hello,
If you are having a problem with your mailing lists going to Yahoo spam folders instead of Yahoo inboxes trying filling out the following bulk sender application with Yahoo :
Yahoo! Mail Bulk Sender Form
Also keep in mind that you should be doing everything possible to maintain a high quality mailing list :
http://www.emailquestions.com/e-mail-articles/1016-best-practices-bulk-email-mailing-lists.html
-Raymond
If you are having a problem with your mailing lists going to Yahoo spam folders instead of Yahoo inboxes trying filling out the following bulk sender application with Yahoo :
Yahoo! Mail Bulk Sender Form
Also keep in mind that you should be doing everything possible to maintain a high quality mailing list :
http://www.emailquestions.com/e-mail-articles/1016-best-practices-bulk-email-mailing-lists.html
-Raymond