no I could know the exact problem when I send to Hotmail or yahoo or ........ mean to external emails not send error show but when I send to local email in sever it sends please help me?

How can I check mail server whether is block or no and this problem happened suddenly 2 days ago was great u mean I can't do anything from primavera right? I mean this is not primavera error right or no because network admin told me check from your side.

sorry for disturbing you the problem now not number of mails sent the problem all external address can't send just I can send to local mails in mail sever exchange only . I want to know is there anything can I do from primavera or no.

thank you very much for your kindness last question how can I know username and password for cm admin for confiuration in utility folder is there any way?