WooSender

have cleaned/scrubbed your list - If your email bounce rate is over 5%, your email will get blocked

have checked that there are no duplicates - If you have 2 contacts with the same phone number, you will be sending out 2 messages if they are both on a campaign

have checked that the phone numbers are valid -

have ensured that your phone numbers are not landlines

1. have cleaned/scrubbed your list - If your email bounce rate is over 5%, your email will get blocked
2. have checked that there are no duplicates - If you have 2 contacts with the same phone number, you will be sending out 2 messages if they are both on a campaign
3. have checked that the phone numbers are valid - 
4. have ensured that your phone numbers are not landlines

Without limiting the application of any other provisions of this AUP, with respect to any of the Services’ email validation features or functionality, you may not:

Use the Services to verify the email address(es) of any person who has not affirmatively consented (i.e., opted-in) to, or who has not expressly opted-out from, receiving email communications from you;

Use the Services to validate email addresses that were purchased, rented, or similarly obtained from a third party (i.e., third-party email lists); or

Use the Services to harvest email addresses or otherwise determine the existence of unknown email addresses.

- Use the Services to verify the email address(es) of any person who has not affirmatively consented (i.e., opted-in) to, or who has not expressly opted-out from, receiving email communications from you;
- Use the Services to validate email addresses that were purchased, rented, or similarly obtained from a third party (i.e., third-party email lists); or
- Use the Services to harvest email addresses or otherwise determine the existence of unknown email addresses.

Please make sure you:

Email Validation