Although mail servers might be configured to silently discard email, the SMTP RFC strongly discourages this Except senders are known to become fraudulent or undesirable. For all other mail, the RFC endorses returning undeliverable mail by having an error code. Sending unengaging or unsolicited material will improve the probability https://it-support72072.like-blogs.com/26647050/little-known-facts-about-powermtasend-email