Com's servers to reply with whether it'll accept mail for [email protected], data which is priceless to spammers seeking to compile receiver lists for long run spamming. For reference, much more than a 3rd of IPs sending mail to Outlook.com keep the portion of RCPT instructions that don't cause message recipients https://resin-3d-printer37047.review-blogger.com/60593774/the-definitive-guide-to-agente-adyuvante