Bulk Yandex address checker: check a list of Yandex addresses at once
In short: Checks many yandex.ru, yandex.com and ya.ru addresses at once: typo domains, duplicates and +tag repeats flagged, and 10 mailboxes asked live at Yandex's server. Limit: Measured on yandex.ru; yandex.com shares its mail server, but regional domains were not tested separately.
A bulk Yandex address checker tests many yandex.ru, yandex.com and ya.ru addresses at once. Syntax, duplicates and dead domains are flagged in your browser, then the first 10 are asked live at Yandex's mail server, which rejected a made-up address with 550 5.7.1 No such user! in our 23 October 2026 study. 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 Yandex addresses?
- Export the list as a CSV or copy the email column; Yandex 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 Yandex 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 Yandex 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 Yandex'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@yandex.ru,jane.doe+deals@yandex.ru,bob@yandex.con, a ya.ru, a yandex.com and a company address. - You get
bob@yandex.conis flagged as a likely typo of yandex.com and comes off;jane.doe+deals@yandex.ruis marked as row 1 plus a +tag and kept; the company address is marked as another provider. The live check asks Yandex about the Yandex rows first, and a missing mailbox comes back invalid.- 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 Yandex addresses exist in bulk?
Yes, with one limit on volume. Yandex is one of the providers whose mail server answers the mailbox question: yandex.ru and yandex.com publish mx.yandex.ru, and in our verification study on 23 October 2026 it rejected a made-up address at RCPT TO in both rounds. So a result for a Yandex row comes from Yandex, not from a guess.
The free page asks about 10 mailboxes live. A whole list goes through the bulk verifier, where Yandex rows get the same check.
Why does Yandex say 5.7.1 for a missing user?
Yandex chose the policy-class enhanced code 5.7.1 for unknown recipients, where most providers use 5.1.1 (RFC 3463 defines both). The words in the reply, No such user!, are what make it a missing mailbox, so the checker reads the words and not only the code. A 5.7.1 that talks about policy or blocking stays risky.
That is why a risky row on a Yandex list is worth checking again later, and a company domain hosted on Yandex 360 is not matched here: it is checked as a normal address, and if the domain accepts everything, no address there can be confirmed.
What does the bulk Yandex 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 yandex.ru, yandex.com, yandex.by, yandex.kz, yandex.ua, yandex.com.tr and ya.ru 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, Yandex 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 Yandex checker.
What does each check catch on a Yandex 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: Yandex answers at RCPT TO (550 5.7.1 No such user!) | 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 yandex.ru in our verification study on 23 October 2026; regional Yandex domains were not tested separately.
Who uses this tool, and for what?
- Sales and partnerships
- Check the Yandex rows of an Eastern Europe lead list before writing to them.
- SaaS signups
- Spot invented Yandex addresses in a signup export: they come back invalid.
- List owners
- Find the same Yandex inbox written as name and name+tag before counting your audience.
What can’t this tool tell you?
- Measured on yandex.ru; yandex.com shares its mail server, but regional domains were not tested separately.
- Company domains hosted on Yandex 360 aren't matched by name; they are checked as normal addresses.
- A +tag repeat is marked as possibly the same inbox, not merged, because this page doesn't verify how Yandex 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
- Can you check if a Yandex email exists without sending an email?
- Yes. Yandex's mail server answers whether a mailbox exists before any message is sent, so a checker can ask and disconnect.
- Are yandex.ru, yandex.com and ya.ru checked the same way?
- yandex.ru and yandex.com publish the same mail server, mx.yandex.ru. Measured on yandex.ru; ya.ru and the regional domains count as Yandex rows here but were not tested separately.
- Is there a free bulk Yandex checker?
- Yes. This page checks a whole list for syntax, duplicates, typo domains and dead domains for free, asks Yandex's server about 10 mailboxes live, and gives 100 free email checks with a Google sign-in. No card.
- Will the Yandex 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 Yandex?
- They are checked as normal addresses and marked as another provider. The live check asks about the Yandex 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.