Here are some suggestions for what to do with email address verification results.

Sending Emails Via MailChimp

Verification Status 'Ok'

'Ok' status email addresses are confirmed to be safe to send to with a confidence factor of more than 99%.

Action To Take

Feel happy to upload these to Mail Chimp for a successful campaign.


Verification Status 'Bad'

'Bad' status email addresses are confirmed to be dangerous to send to with a confidence factor of more than 99%.

Action To Take

Mail Chimp will either complain at the pre-screening Omnivore stage or after the mail campaign send. Remove 'Bad' emails manually from your email campaign before uploading to Mail Chimp.


Verification Status 'Unverifiable'

'Unknown' status emails are email addresses that cannot be verified using any email address verification technology.

Action To Take

'Unknown' status email addresses can ultimately be 'Ok' or 'Bad'. Unfortunately, there is no way of knowing without actually doing the email send.

What to do next depends on your perspective on risk and your ultimate objective with regards to your email campaign.

If your objective is to maximize conversions and you are happy to accept some risk (i.e. the risk of receiving warnings from Mail Chimp), go ahead and upload the 'Unknown' status emails. 'Unknown' status emails will either be blocked at the Omnivore stage or picked up as hard bounces at the email send stage.

If, however, your objective is to send a 'safe' campaign with minimal risk of Omnivore or manual warnings from Mail Chimp, it is safest to eliminate the 'Unknown' status emails from your list prior to upload to Mail Chimp.


Sending Emails Via Your Own Send Service

Verification Status 'Ok'

'Ok' status email addresses are confirmed to be safe to send to with a confidence factor of more than 99%.

Action To Take

Feel happy to upload these for a successful campaign.


Verification Status 'Bad'

'Bad' status email addresses are confirmed to be dangerous to send to with a confidence factor of more than 99%.

Action To Take

Remove 'Bad' emails manually from your email campaign before sending to avoid hard bounces and anti-spam blocks.


Verification Status 'Unverifiable'

'Unknown' status emails are email addresses that cannot be verified using any email address verification technology.

Action To Take

'Unknown' status email addresses can ultimately be 'Ok' or 'Bad'. Unfortunately, there is no way of knowing without actually doing the email send.

What to do next depends on your perspective on risk and your ultimate objective with regards to your email campaign.

If your objective is to maximize conversions and you are happy to accept some risk (i.e. the risk of receiving hard bounces and anti-spam blocks), go ahead and send to the 'Unknown' status emails but do it slowly (recommended rate of no more than one email per second). 'Unknown' status emails will either be delivered to the inbox or show up up as hard bounces in your return path inbox.

If, however, your objective is to send a 'safe' campaign with minimal risk of hard bounces or anti-spam blocks, it is safest to eliminate the 'Unknown' status emails from your list prior to sending the campaign.



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