MailChannels | Anti-Spam Blog: An update to the email standards

The SMTP RFC’s have been replaced! A few things from the list caught my eye:

• No spaces are permitted after or before the ‘mail from:’ colon.
• 587/submission is back in play and recommended
• Lots of striked-out garbage
• Post DATA 550’s!

The previous RFC on all but the ‘mail from:’ items have been ignored by most sysadmins for security reasons.