[qmailtoaster] error

[Noel Rivera (Border Less)]

Hello List In a few days I have this error in my qmail server, any ideas to
solve this problem?

 

Thanks for your help

 

 

@400000004c97b94f1d8935ec qmail-smtpd: qq soft reject (mail server
temporarily rejected message (#4.3.0)): MAILFROM: