Hard bounce occurs when an email bounces back . As permanently undeliverable. This usually happens for reasons such as: the recipient's email address is . Invalid or no longer available. Domain name does not exist. The email server has blocked . Delivery due to security or spam concerns. Hard returns should be addressed immediately as they . Indicate permanent delivery errors that will not resolve themselves.
Constantly sending emails to these addresses
Damages your sender reputation and wastes resources. Soft south africa whatsapp number data 5 million bounces: a soft bounce occurs when an . Email is temporarily undeliverable. This may happen for reasons such as: the recipient's mailbox is . Full. The email server is temporarily down or unavailable. The email is too large for . The recipient's inbox. Soft bounces usually resolve on their own after a few tries.
Jumps over time, it may indicate a more persistent . Problem that needs to be addressed. Why it matters: impact on sender reputation and delivery: . Internet service providers (isps) closely monitor bounce rates to determine whether a sender is reputable . Or engaging in poor email practices such as sending to invalid or non-existent addresses. High . Bounce rates are a red flag to isps, who may classify your emails as spam .