ActiveCampaign is one of the most feature-rich ESPs for lifecycle marketing and sales automation. Its deliverability reporting, on the other hand, is light — a single "Delivery Rate" number that confuses even experienced marketers. If your AC dashboard says 98.7% delivered but your opens are in the single digits, the metric is lying to you by design. Here is what it actually measures, what it hides, and how to verify real inbox placement for free.
AC's Delivery Rate = (Sent - Bounces) / Sent. It includes every message that was accepted by the receiving MTA, including messages silently dropped into Spam or Junk. Typical Inbox placement on AC shared pools is 60–80% for warm domains, 30–55% for cold. Test it yourself.
Accepted vs placed
When an email leaves AC, the receiving mail server returns one of three SMTP responses:
2xx(usually250 OK) — message accepted. AC counts this as Delivered.4xx— temporary failure. AC retries. If eventually accepted, Delivered; else Soft Bounce.5xx— permanent failure. Hard Bounce. Not counted as Delivered.
Nothing in SMTP tells the sender whether the message went to Inbox, Promotions, Updates, Junk or Spam. The receiver makes that decision silently after accepting the message. "Delivery Rate" has been correctly defined for 30 years — it was just never intended as a placement metric.
ActiveCampaign shared-pool behaviour
All AC plans below the Enterprise tier send on shared IPs. Pool assignment is based on account-level signals (volume tier, complaint history, content profile) and rotates weekly. Observed behaviour from our own testing and customer reports:
- B2B senders on Plus and Professional tiers typically see Gmail Primary 45–65%, Promotions 30–45%, Spam 2–8% with correct authentication.
- B2C senders see more Promotions placement (often 60%+ at Gmail), which is expected and not necessarily a problem for commerce offers.
- Outlook placement is the weakest link: Junk folder is common during the first 30 days of a new account or after a high-complaint campaign on the pool.
The three settings to audit
Before troubleshooting placement with a test, confirm these three configurations are clean. They fix ~60% of AC deliverability problems on their own.
1. Sending domain and DMARC alignment
AC lets you send from any verified domain. Verification adds SPF and DKIM records, but does not automatically set DMARC. Without a DMARC record at _dmarc.yourdomain.com with at least p=quarantine, Gmail and Yahoo's 2024 sender rules kick in — and AC shared-IP traffic hits Spam by default for bulk senders.
2. DKIM selector
AC uses its own DKIM selector (dk._domainkey.yourdomain.com or similar). If you migrated from another ESP, the old selector may still be there. Multiple active DKIM selectors do not hurt, but a missing or malformed AC selector silently breaks signing. Verify via DNS lookup and send a test message to check-auth@verifier.port25.com.
3. Custom tracking domain
By default AC uses a shared tracking domain (trk.activecampaign.com or similar). This domain is shared with thousands of other senders and shows up on SURBL and URIBL more often than you would hope. Setting up a custom tracking CNAME under your own domain removes you from the shared reputation — one of the highest-ROI changes for AC placement.
Senders who switch from the AC default tracking domain to a custom CNAME typically see +5 to +15 points of Gmail Inbox placement within 7–10 days. There is no reason not to do it.
A free placement test
Once the three settings above are clean, the only way to know real placement is to test with seed inboxes at each major provider. Our free tool runs the test across 20+ providers in under three minutes:
- Open the free test in another tab.
- Copy the seed address list into your AC campaign as a test audience.
- Send the campaign to the seed list only. Do not send to your real list yet.
- Read the per-provider breakdown.
- Fix any provider showing >10% Spam or >70% Promotions before the full send.
Reading provider-by-provider results
AC traffic is predictable enough that a few patterns emerge in the per-provider breakdown:
- Gmail Primary < 30% — usually a content issue (too-promotional subject, too many links, image-heavy HTML) or Promotions-classification signals. Not always fixable; sometimes just the nature of the message.
- Gmail Spam > 5% — authentication problem or content triggering strong filters. Check SpamAssassin score first.
- Outlook Junk > 30% — almost always a DMARC or return-path alignment issue, sometimes a URIBL hit on the tracking domain.
- Mail.ru Spam > 50% — your sending domain or IP is not recognised in the CIS space. Consider a local ESP or dedicated IP.
When AC's Enterprise tier matters
The Enterprise plan adds dedicated IP options, a named deliverability contact and more aggressive pool segmentation. It makes sense when:
- You send >100k messages per month consistently.
- Placement variability (swing >20 points week to week) is hurting revenue.
- You need SLA-backed deliverability for transactional or compliance-sensitive mail.
Below those thresholds, the three settings above plus disciplined list hygiene will close most of the gap that Enterprise would.
GlockApps pricing comparison
GlockApps is the classic placement-test tool. Their Starter plan runs around $59/month for 200 seed tests — enough for a weekly newsletter plus a handful of flow audits. Agencies running many client AC accounts burn through credits fast.
Our free tool covers the same 20+ providers including Mail.ru, Yandex, Rambler and other CIS systems, with unlimited tests. The trade-off: no long-term dashboards, no white-label reports. For individual senders and lean teams, free is the pragmatic choice.