Why am I getting Bounces?
Inspect the bounce response for a reason for the bounce. There are different types of bounces (hard and soft). Hard bounces are permanent errors (ex. the mailbox does not exist), whereas soft bounces are temporary errors (ex. the mailbox is full). To better understand why your email is not being delivered, we suggest inspecting the reason. The most common reasons for hard bounces are using addresses that have not been vetted, communicating with individuals that have not opted-in to communication, and using purchased lists. Sending emails repeatedly to hard bounce addresses can lower the reputation of the sender and result in blocklisting of the sending IP address and/or domain.
What are Internal Bounces?
Internal bounces are when the email service provider will not send emails because the account has been flagged for suspicious activity. When a user attempts to send too many emails, has too many recipients, or attempts to send emails with phishy content some providers will use a “lockout” to preserve the inbox in case there has been an account takeover or to prevent what they believe might be malicious content from being sent. Most providers provide an error code as to why a user has been locked out of their account.
Why do throttle limits exist in Outreach?
Outreach employs throttle limits to prevent users from getting locked out of their email accounts and to minimize blocklisting risks for our customers. Each email/inbox service provider has a limit as to how many emails, recipients, and volume sent at one time. Setting reasonable limits lessens the risk of exceeding the limits that can be sent from a corporate email account. This also seconds as a way of reducing risk that a domain/ip will be blocklisted by a recipient domain from receiving too many emails at once or over a certain window of time.