My question regards a postfix setup with virtual domains. The server should send mail with a sender address where the address is not hosted on the sending server. If an email could not be delivered (e.g. the recipients address is incorrect) postfix should deliver a status notification based on the senders address back to a local mailbox, from where I can retrieve it with POP3.
Mail from: firstname.lastname@example.org Recipient: email@example.com If the delivery fails send a delivery status notification back to a local account.
Is this somehow possible? I've read things about beeing blacklisted when reverse DNS lookup fails if the mails sender and the domain of the mailserver do not match.
Any answers greatly appreciated!