Hi,
I have a problem sending email to particular domains that manage by an ISP. All email get rejected by this ISP mail server, eventhough the email status already "SENT" in postfix maillog. Is there any action that I need to do to make my postfix can working well with this ISP mail server? I think they using Exim. ----- Original Message ----- From: "Mail Delivery System" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, August 01, 2008 2:40 PM Subject: Delivery Status Notification (Failure) The following message to <[EMAIL PROTECTED]> was undeliverable. The reason for the problem: 5.4.7 - Delivery expired (message too old) [Default] 451-'Sender verify failed' Thanks Fajar
