>I just noticed that Sender Address Verification has a 3 hour wait before >doing a second verification attempt. For example, Postfix logs: >'Sender address rejected: unverified address: conversation with >smtp.tiscali.cz[213.235.135.72] timed out while sending MAIL FROM' >I've had several instances where an overzealous MTA (or more likely, >virus) keeps retrying 2-3 times every 5 minutes. What setting in main.cf >would control that?
you can't control what other MTA's do. address_verify_map = hash:/var/log/address_verify.map address_verify_positive_expire_time = 31d address_verify_positive_refresh_time = 7d address_verify_negative_cache = yes address_verify_negative_expire_time = 3h address_verify_negative_refresh_time = 1h unverified_sender_reject_code = 554 unverified_recipient_reject_code = 554 and try : man verify Len
