Email Validation
A check, run before an address enters a campaign, that it is well formed, sits on a domain with a working mail server, and accepts mail. Tools test syntax, MX records and the mailbox over SMTP without sending anything. Catch-all domains accept every address, so their result stays "unknown"; send those in a small separate batch.
Growth without the headcount.
Knowing the vocabulary is the easy part. In a free 30-minute call we look at what it would look like running on your stack.
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