Bulk WP Poczta email checker: check a list of wp.pl addresses at once
In short: Checks many wp.pl addresses at once: duplicates and +tag repeats flagged, and 10 mailboxes asked live at WP Poczta's server. Limit: WP doesn't publish how its servers answer mailbox checks; the handling here is from our own checks, which can change.
A bulk WP Poczta email checker tests many wp.pl addresses at once. Syntax, duplicates and dead domains are flagged in your browser, then the first 10 are asked live at WP's mail server, which rejected made-up addresses with 550 Podane konto nie istnieje on 12 October and 8 November 2026. A missing mailbox comes back invalid, a real one valid, an unclear answer risky.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
By SimpleVerifier Team · Last updated
How do I check a whole list of WP Poczta addresses?
- Export the list as a CSV or copy the email column; WP Poczta rows and every other domain can go in together.
- Upload or paste it at /verify. Every address gets a live mailbox check, and the first 100 email checks are free with a Google sign-in, no card.
How do I check if many wp.pl addresses exist?
- Paste the addresses, one per line, or a CSV column of them. Addresses at other providers are checked as normal addresses and marked.
- Press Check the WP Poczta addresses.
- Read the flagged rows: a typo domain, a duplicate, a +tag repeat of an earlier row, or a domain with no mail server.
- Download the clean list. Notes stay on it; only rows that fail a check come off.
- The first 10 go to WP Poczta's mail server for a live answer. Sign in with Google to check the rest with 100 free email checks.
Example
- You enter
- 6 addresses:
jane.doe@wp.pl,jane.doe+deals@wp.pl,Jane.Doe@wp.pl, another wp.pl, an onet.pl and a company address. - You get
Jane.Doe@wp.plis marked as a duplicate of row 1 and comes off;jane.doe+deals@wp.plis marked as row 1 plus a +tag and kept; the onet.pl row is marked as another provider. The live check asks WP about the wp.pl rows first.- Limits
- The browser pass covers the first 5,000 rows; only domains leave your device. 10 live checks a day without an account, then the free checks with a Google sign-in.
Can you check if wp.pl addresses exist in bulk?
Yes. On 12 October 2026 WP answered a made-up address at RCPT TO with 550 Podane konto nie istnieje / No mailbox here by that name (#5.1.1), in Polish and English, and a fresh made-up address was rejected again on 8 November. A result for a wp.pl row therefore comes from WP's server.
The free page asks about 10 mailboxes live. A whole list goes through the bulk verifier. Only wp.pl rows count as WP here; o2.pl and onet.pl rows are checked as normal addresses.
Can a wp.pl address belong to someone new?
Yes. WP Poczta's terms allow an account and its contents to be deleted after 180 days without a login, and then let another user take over the old address. A valid result here shows the mailbox exists today, not that it is still the same person.
WP's bulk sender recommendations tell senders to remove people who don't open.
What does the bulk WP Poczta check do to my list?
The pass over the whole list runs in your browser: syntax, duplicates, typo domains and role addresses. Only the unique domains are sent out, to look up mail servers and the disposable list. Rows at wp.pl are matched by the part after the @, so an address at any other domain is checked as a normal address and marked as another provider.
Then the first 10 addresses, WP Poczta rows first, are asked live at the mail server without sending anything. Sign in with Google to check the rest with 100 free email checks. For one address with full notes, use the WP Poczta checker.
What does each check catch on a WP Poczta list?
| Check | Can we confirm it? | Result when it fails |
|---|---|---|
| Syntax and duplicates | Yes, in your browser | Bad syntax comes off; a duplicate is marked |
| Domain and mail server (MX) | Yes, from DNS | No mail server comes off |
| Disposable or role address | Yes | Disposable comes off; a role address is marked |
| The mailbox exists | Yes: WP answers at RCPT TO (550 Podane konto nie istnieje) | Invalid, "Mailbox not found"; an unclear reply is risky |
| Someone reads the inbox | No checker can | Use opens, replies or a small first send |
Mailbox behaviour as measured on wp.pl on 12 October and 8 November 2026.
Who uses this tool, and for what?
- Polish shops and newsletters
- Drop wp.pl mailboxes that no longer exist before a campaign.
- Lead buyers
- Check the Polish webmail rows of a list before importing it.
- List owners
- Find repeated rows and +tag copies before counting your audience.
What can’t this tool tell you?
- WP doesn't publish how its servers answer mailbox checks; the handling here is from our own checks, which can change.
- Only wp.pl counts as a WP row; o2.pl and onet.pl are checked as normal addresses.
- A +tag repeat is marked as possibly the same inbox, not merged, because this page doesn't verify how WP treats tags.
- The live check covers 10 addresses without an account; risky results there can mean the check was cut short, so try again later.
- Valid means the mailbox exists today, not that anyone reads it.
Common questions
- What does Podane konto nie istnieje mean?
- It is Polish for "the given account does not exist". WP's server sends it with a 550 code and the enhanced code 5.1.1, so treat it as a hard bounce and remove the address.
- Does WP delete inactive accounts?
- WP Poczta's terms allow an account to be deleted after 180 days without a login, and the address can then be taken over by another user.
- Is there a free bulk WP Poczta checker?
- Yes. This page checks a whole list for syntax, duplicates, typo domains and dead domains for free, asks WP Poczta's server about 10 mailboxes live, and gives 100 free email checks with a Google sign-in. No card.
- Will the WP Poczta users know I checked their address?
- No. The check ends after the mail server answers about the mailbox, before any message content is sent, so nothing arrives in their inbox.
- What happens to the addresses on my list that aren't WP Poczta?
- They are checked as normal addresses and marked as another provider. The live check asks about the WP Poczta rows first.
Sources
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.