Hi All, I have 4 email server with different domain names. Issue is, In one doamin server yahoo emails are not coming with abcd@xxxxxxxxxxxxxxxx address. Let us take 1 user name: Abcd@xxxxxxxxxxxx, If Any body sends email to this user using email address Abcd@xxxxxxxxxxxx and abcd@xxxxxxxxxxxx ( Here abcd -a letter is small)from Hotmail account,both emails will come. But from Yahoo account, if any body sents email to Abcd@xxxxxxxxxxxx email will come but not for abcd@xxxxxxxxxxxx ( Here abcd -a letter is small) account. But in some domain like test2.domain, it is working fine. Please can anybody through some idea about the problem. Thanking You __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com