A suppression list is exactly what it sounds like — a list of addresses you've decided to never email again. Hard bounces, spam complaints, unsubscribes. Anyone who has told you, directly or through their mail server, that they don't want your messages.
Read more →Here's something that surprises people: a list doesn't have to get smaller to get worse. It can stay the same size while quietly rotting from the inside.
Read more →Not all bounces are the same. Treating them the same way is one of the most common mistakes in email marketing — and it's one that quietly kills sender reputation over time.
Read more →When an email bounces, your mail server gets a reply. Usually something terse like "550 5.1.1 User unknown" or "452 4.2.2 Mailbox full." The question is what you do with that reply — and most senders don't do anything at all.
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