How to Check a List of Yandex Email Addresses at Once
Many Yandex addresses can be checked at once: the whole list is cleaned of syntax errors, typos, duplicates and dead domains in your browser, then the first 10 are asked live at Yandex's mail server. The bulk Yandex address checker covers yandex.ru, yandex.com and ya.ru rows.
The volume limit is the catch: the free page asks about 10 mailboxes live, and the rest of a long list goes through the bulk verifier.
What Yandex's server says
In our verification study on 23 October 2026 Yandex rejected a made-up address in both rounds, with 550 5.7.1 No such user!. RFC 3463 defines the codes; most providers use 5.1.1 for a missing user, so the checker reads the words. A 5.7.1 that talks about policy or blocking stays risky. For the single-address story, see verifying Yandex and Mail.ru addresses.
The by-hand way
- Filter the sheet to yandex.ru, yandex.com and ya.ru.
- Remove duplicates and fix obvious typos.
- Check addresses one at a time with the Yandex address checker.
Step 1: paste the list
One per line, or a CSV column. Other providers go in as normal addresses and are marked.
Step 2: read the flags and download
Look at typo domains, duplicates, +tag repeats and dead domains.
What this check cannot do
- Measured on yandex.ru; yandex.com shares its mail server, but regional domains were not tested separately.
- A company domain hosted on Yandex 360 is checked as a normal address, and if the domain accepts everything, no address there can be confirmed.
- A risky row is worth checking again later.
- Valid means the mailbox exists today, not that anyone reads it.
Next: verify the whole list
For lists past the free 10, use the verify page: the first 100 checks are free with a Google sign-in, no card.
Try it now
Paste your list into the bulk Yandex address checker.
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 but were not tested separately.
Why does Yandex say 5.7.1 for a missing user?
Yandex uses the policy-class code 5.7.1 where most providers use 5.1.1. The words No such user! make it a missing mailbox, so the checker reads the words and not only the code.
Are company domains on Yandex 360 matched?
No. They are checked as normal addresses.
Is it free?
The whole-list pass is free, 10 addresses are asked live, and a Google sign-in unlocks free checks for the rest.
Check your list before you send
Real mailbox checks over SMTP, and nothing is sent to the address. Sign in with Google and your first 100 email checks are free, no card. Plans for bigger lists are on the pricing page.