I am trying to send an email (from thunderbird) and I get this message: An error occurred while sending mail. The mail server responded: 4.1.1 <tzell...@yahoo.gr>: Recipient address rejected: unverified address: host mx-eu.mail.am0.yahoodns.net[188.125.69.79] said: 421 4.7.0 [GL01] Message from (92.xxx.xxx.xxx) temporarily deferred - 4.16.50. Please refer to http://postmaster.yahoo.com/errors/postmaster-21.html (in reply to MAIL FROM command). Please check the message recipient tzell...@yahoo.gr and try again.
Can I configure postfix to accept it and try to deliver it later automatically ? I am asking this, because when I send the same email to same recipient, but from gmail, I don't get a complaint like this.