this one's based on 3,000+ support tickets Premium Inboxes has handled. the same questions come up over and over. people running cold email campaigns who don't actually understand the infrastructure underneath.

that's not an insult. nobody expects you to be a DNS expert. but if you're sending thousands of emails a month and you can't answer these questions, your campaigns are likely underperforming and you don't know why.

answer honestly. no one's watching.

the 10 questions

Q1. what's the difference between SMTP and IMAP?

• a) SMTP sends email, IMAP receives it
• b) they're the same thing
• c) SMTP is for Google, IMAP is for Outlook
• d) no idea

Q2. what does an SPF record do?

• a) encrypts your emails
• b) tells receiving servers which IPs can send on behalf of your domain
• c) prevents emails from being opened by the wrong person
• d) speeds up email delivery

Q3. how long should you warm up a new inbox before launching campaigns?

• a) 2-3 days
• b) one week
• c) 14+ days
• d) warmup isn't necessary if your DNS is correct

Q4. what's the recommended provider split for cold email infrastructure?