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Email Deliverability

Email deliverability is the share of your sent email that actually reaches the inbox — not the spam folder, not the void — and it depends on sender reputation, list quality, and content.

What is email deliverability?

Email deliverability is the practical measure of whether your messages land in front of recipients. Sent ≠ delivered ≠ inboxed. A well-instrumented program tracks all three: sent volume, delivered (no bounce), and inboxed (vs. spam/promotions).

Why it matters

  • Inbox placement directly drives every other metric — opens, clicks, replies — because nothing happens in the spam folder
  • Bad deliverability silently kills campaigns; you don't see complaints, you just see worse numbers
  • Recovery is slow — 4 to 8 weeks of careful sending to climb out of a reputation hole

What drives it in 2026

  • Authentication (SPF, DKIM, DMARC = enforce — Gmail and Yahoo require it)
  • Sender reputation (low bounce, low complaint, real engagement over time)
  • List quality — verified addresses, no role accounts, no scraped junk
  • Content — avoid spam trigger words, keep image-to-text ratio sane, link to a single domain
  • Volume ramp — never blast a cold mailbox at full speed

How TexAu helps

Verify every email before it reaches your sequencer, segment hot vs. cold prospects so engagement signals stay strong, and dedupe to avoid the double-send pattern that triggers complaints.

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