5.2.4 alias failed to expand to any valid addresses:

I’m always receiving the error saying : The recipient not accepted by the Server and the log always has the entry " 5.2.4 alias failed to expand to any valid addresses" while the mail is valid address.

Hi, this is no caused by eM Client, this issue is caused by server and is shown when email server does not recognize recipient’s email alias.

Jan

what do i do to fix eM Client issue