Land in the inbox, not spam

Email deliverability is whether your email reaches the recipient's mail server. SPF, DKIM and DMARC setup, sender reputation and list quality all affect it.

Warm up new senders, verify your list, keep daily volume per sender low, send plain-text emails and test placement before you launch.

You can consider an email deliverability rate of 90% to be good. If yours is lower, check your Domain Setup Report, sender Health and placement test results.

Which folder your email lands in at each provider: inbox, spam, promotions, updates or another tab.

Misleading subject lines lead recipients to mark you as spam, which hurts your sender reputation.

Emails with too many images and very little text can trigger spam filters. Avoid images and links in your first email, and send plain text where you can.

Health is based on two things: warmup readiness checks and your domain setup. The readiness checks cover domain age, warmup history and consistency, and spam placement overall and per provider. Each missing SPF, DKIM, DMARC or MX record, or an unreachable website, takes 3 points off, and each blacklist listing takes 1 point off. SalesBlink rechecks each sender about every 48 hours, and the score never reaches 100.

If you turn on Pause cold emails when health falls below in the sender's settings (the threshold defaults to 80), SalesBlink stops scheduling cold emails from that sender, and emails already queued for it are not sent. Other healthy senders in the sequence keep sending, and Email WarmUp keeps running so the sender can recover. When Health climbs back above the threshold, sending resumes. Emails that came due during the pause are marked as errors, so reschedule the sequence to send them.

Start low and increase slowly. A new sender should send 10 to 20 emails a day for the first one to two weeks, a warmed-up sender 20 to 30, and an established sender with a good reputation 30 to 50. These limits apply to each sender, whatever the provider. Set them with Max emails per day in the sender's settings, and add senders to a sequence to send more in total.

Health measures your mailbox's reputation, but some providers filter email coming from a different provider more strictly, for example Google senders emailing Outlook inboxes. The test's placement table shows each sender-to-recipient provider pair, so you can see where it happens. Provider Matching sends Gmail leads from Google senders and Outlook leads from Outlook senders to reduce this.

It can. The Domain Setup Report shows red for senders on a subdomain and adds the message "Sending cold emails with email senders on subdomains have poor deliverability". It doesn't block sending. The report also flags a sending domain with no working website, since providers distrust bulk email from domains without one. Redirect the domain to your main site with a 301 redirect to fix that.