When we indicate that the email address is not valid, it means that we tried to send a message but that the email was refused.

There are several reasons for this. In most of the cases, 

  • (Email Address Errors) Sometimes it’s literally as simple as just a mistyped or misspelled email address.

  • (Lack of Storage) Occasionally Walter email simply hasn’t got enough space to land.

  • (Permission Denied) This means the recipient’s mail server mistakenly thinks you’re spam. This can be done in most cases by adding no-reply@usewalter.com to their contact list. In other cases, in the parameters / Filters and blocked addresses, you must create a list and add no-reply@usewalter.com.


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