Read the warmup health dashboard (health score, inbox vs spam placement, bounce rate)

Each mailbox has a Warm up tab showing when warm-up started and four headline metrics: mailbox health, inbox placement, spam placement and bounce rate. Check it before adding a mailbox to a campaign and weekly while it sends.

Steps

1. Log in to your OutreachFox account.

1. Click Mailbox in the main menu.

1. Select the mailbox you want to analyse.

1. Click Warm up to open its analytics.

1. Review the dashboard. It shows when warm-up started and tracks mailbox health, inbox placement, spam placement and bounce rate.

How to read each metric

Health score — a composite of placement, bounces and engagement over the recent warm-up window, on a 0–100 scale.

• 90–100: ready for campaigns at full daily limit.
• 70–89: usable, keep the campaign limit at 20–30/day and watch it.
• Below 70: not ready. Keep warming; if it stays under 70 for a week, investigate (see below) or replace the mailbox.

Inbox placement — the share of warm-up emails that landed in the primary inbox of receiving mailboxes. Target 95%+. Below 90% means the mailbox or domain is being filtered.

Spam placement — the share of warm-up emails that landed in spam before the warm-up network rescued them. Target under 5%. A spike on one day is normal; a rising trend over 3+ days is not.

Bounce rate — the share of warm-up emails that could not be delivered. Should be near 0%. Any bounce in warm-up points at a mailbox or DNS problem, not list quality, because the warm-up network only uses valid addresses.

Tips

• Compare mailboxes on the same domain. If all of them dip together, the domain (DNS, blacklist, content) is the cause. If one dips alone, the mailbox is.
• Check the dashboard on day 7 and day 14 of warm-up before you decide to launch.
• Do not launch from a mailbox showing spam placement above 10% regardless of health score.

Troubleshooting

• Health high but inbox placement low. Health lags; placement is the leading indicator. Trust placement.
• Bounce rate above 0% in warm-up. Check that SPF/DKIM/DMARC pass and MX is set. For Microsoft mailboxes, confirm SMTP AUTH and IMAP are enabled.
• Metrics frozen. Warm-up is paused for the mailbox. See Troubleshooting warmup.

Related articles

• Review warmup send/reply history and ESP breakdown
• Troubleshooting warmup (paused, low health score, high spam placement)
• Warmup best practices: how long, how fast, and when to launch
• Enable warmup on your mailboxes
• Inb