Email verification before every send

Bounces hurt more than they look

Sending to addresses that do not exist raises your bounce rate. Mailbox providers read a high bounce rate as a sign of careless sending, and they respond by routing more of your mail to spam, including the messages that were going to real people. Verifying first is the cheapest way to protect your deliverability.

What gets checked

• Format: is the address written like a valid email address?
• Domain: does the domain exist?
• Mail server: does the domain publish a mail server (an MX record) that can receive email?

Addresses that fail any step are removed from the campaign before sending. Reachbox also skips addresses that have bounced or opted out before, and generic role addresses.

What verification cannot promise

No verification can be certain about a single mailbox. Some company mail servers accept every address and only reject it later, and people change jobs. Verification removes the clearly bad addresses; it does not make a bounce impossible. Reachbox keeps watching bounces after you launch.

Built into the flow

You do not export a list, run it through another tool and import it back. Verification is a step in the same pipeline that finds the leads and writes the message.