Email marketers are encountering both hard and soft bounces, along with bounces caused by spam traps. Hard bounces, signifying permanent delivery failures due to invalid email addresses, should be immediately removed from mailing lists. Soft bounces, representing temporary issues like full mailboxes or server problems, can be retried. High bounce rates negatively impact sender reputation and may lead to emails being marked as spam. Proactive list cleaning, keeping bounce rates below 2-5%, monitoring bounce codes, utilizing tools like Google Postmaster Tools and avoiding spam traps are critical for maintaining healthy deliverability. Bounce classification helps determine whether an address should be removed or if the problem is temporary.