Email isn’t delivered hundred percent of the time but undelivered email isn’t necessarily void of opportunity. Bouncing blocked emails are returned to the email senders email address with code to tells you why the email was blocked. Of course email servers are exactly have a way with words so I recommend using an email service provider that can classify your bouncing block emails and reports that are easier for humans to interpret. Bounce reports show you which email bounce and why they bounced so that you can take the appropriate action.
Emails that are permanently undeliverable called Hard Bounced. Hard bounce means that the email address does not exist so it’s either misspell, the addresses been changed or been abandoned by the owner. When you see a hard bounce in your bounce report you should either contact your subscribers via another method to obtain a new email address or simply delete them from your database. When your email bounce report shows an email return as mailbox full, temporarily undeliverable or blocked these situations are known as Soft Bounces. Soft bounces may be temporary or permanent so check your bounce report to see how often a particular email is bounced. If you notice three or more consecutive soft bounces for an email address should treat it just like a hard bounce. If you notice the regular soft bounces, you can try resetting your emails later date. Remember the best way to reduce blocked emails is to make sure your email list is up-to-date in the first place. Send an email once every three months or so reminding your subscribers to notify you or update your subscription profile if they change email addresses; that way to better chance of catching some of the email address changes before they show up one of bounce report. Another preventative measure is avoiding email filters that deliver your email to junk and spam folders instead of bouncing emails back as undeliverable.