people account E-mails(Welcome,activation,rules send mail) are not working.Please help me

[anilsr]

@mythili , Please do not post duplicate questions in Community. Instead, Update your existing question with more details / comments. I believe this question is related to your earlier question posted here https://community.apigee.com/questions/28149/after-enabled-mime-mail-send-email-is-not-workingr.html