IQ.pl (PL) mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 14, 2026), IQ.pl (PL) is the mailbox provider for 113 domains — 0.02% of 674,487 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 113 domains in the Tranco top-1M use IQ.pl (PL) (0.02% of domains with MX records).
- Snapshot date: 2026-09-14 — recomputed every day.
- Strongest TLD: .pl (69.9% of its domains).
- Region skew: Poland.
- Most co-used service: MailerLite.
- Directory category: hosting mail bundle.
Why IQ.pl (PL) appears in this category
Polish SMB hosting+mail.
We classify it as a hosting mail bundle from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
IQ.pl is a mailbox provider operating in the Polish email market, serving the .pl domain space as a regional email hosting and inbox service.
Its footprint concentrates in the long tail of smaller sites and regional operations, and is frequently found alongside MailerSend. For senders targeting Polish recipients, IQ.pl represents part of the real regional mailbox landscape; for international-only campaigns, it is lower priority than the major global megaproviders.
Where IQ.pl (PL) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 0.9% |
| Top 100,000 | 8 | 7.1% |
| Top 1,000,000 | 104 | 92.0% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .pl | 79 | 69.9% | |
| .com | 10 | 8.8% | |
| .com.pl | 8 | 7.1% | |
| .de | 4 | 3.5% | |
| .co.uk | 3 | 2.7% | |
| .it | 2 | 1.8% | |
| .eu | 2 | 1.8% | |
| .ly | 1 | 0.9% | |
| .ro | 1 | 0.9% | |
| .us | 1 | 0.9% |
What IQ.pl (PL) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 113 domains.
| Type | Service | Domains | Share of IQ.pl (PL) users |
|---|---|---|---|
| ESP | MailerLite | 16 | 14.2% |
| ESP | SALESmanago (PL) | 6 | 5.3% |
| ESP | EmailLabs (PL) | 6 | 5.3% |
| ESP | edrone | 4 | 3.5% |
| ESP | GetResponse | 4 | 3.5% |
| ESP | SparkPost | 2 | 1.8% |
| ESP | Zoho ZeptoMail | 1 | 0.9% |
| ESP | HubSpot | 1 | 0.9% |
| ESP | Mailchimp | 1 | 0.9% |
| ESP | IAI-Shop (PL) | 1 | 0.9% |
Testing regional mailbox providers in Polish email infrastructure
IQ.pl's presence in Poland's long-tail market illustrates a core principle of email deliverability testing: regional providers must be included alongside global tiers, as filtering and authentication practices often differ. For campaigns with Polish recipients—particularly those using common Central European email service providers—testing against IQ.pl helps surface regional inbox issues before they impact production deliverability.
See the full IQ.pl (PL) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Do I need to test email deliverability against IQ.pl?
Test it if you're targeting Polish recipients or .pl domains; IQ.pl is concentrated in Poland's smaller sites. For international-only campaigns, prioritise global providers instead.
How many domains use IQ.pl (PL)?
113 domains in the Tranco top-1M use IQ.pl (PL) as their mailbox provider as of September 14, 2026 (0.02% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is IQ.pl (PL) common enough to affect email deliverability testing?
IQ.pl (PL) accounts for 0.02% of domains with MX records in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Which countries or TLDs use IQ.pl (PL) most?
IQ.pl (PL)'s largest TLD is .pl (69.9% of its domains); it appears across 12 TLDs in total.