Mailbox provider · 126 Mail (NetEase)
How to verify a 126.com email address
Can you verify @126.com addresses?
YesYes. @126.com answers mailbox checks one address at a time.
Check one address
Five checks a minute, no account needed. Nothing is sent to the address — we ask its mail server whether the mailbox exists, then disconnect.
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The checker opens an SMTP conversation with 126.com's mail server, offers a random address first to rule out a catch-all, then names your address at RCPT TO and disconnects without sending. A rejection comes back invalid ("Mailbox not found") and an acceptance valid ("Mailbox exists"). Temporary replies come back risky. It always checks the syntax, the domain's MX records, disposable domains and role addresses such as info@ first.
Mailbox existsMailbox not foundServer would not confirm126 Mail (NetEase) addresses can be verified without sending an email. On 12 October 2026 the 126.com mail server 126mx02.mxmail.netease.com rejected a made-up recipient at the SMTP RCPT TO step with 550 User not found, so a mailbox check can tell a missing 126.com account from a real one.
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Live DNS snapshot: 126.com
Checked 6 November 2026, 11:11 UTCRead from DNS at the time shown and refreshed at most once a day. MX says where mail for 126.com goes; SPF and DMARC describe mail sent from it, not whether any one address exists.
- 10
126mx01.mxmail.netease.comNetEase - 10
126mx02.mxmail.netease.comNetEase - 10
126mx03.mxmail.netease.comNetEase - 50
126mx00.mxmail.netease.comNetEase
First MX host belongs to NetEase.
v=spf1 include:spf.mail.163.com -allp=none: meets the requirement, but blocks nothing. No rua= address, so you get no aggregate reports.
v=DMARC1; p=none;Look up any other domain with the MX lookup or the email provider lookup.
126 Mail (NetEase) at a glance
| Operated by | Guangzhou NetEase Computer System Co., Ltd. (广州网易计算机系统有限公司), Guangzhou, ChinaSource: NetEase Mail privacy policy (Chinese) |
|---|---|
| Same mailbox system | 163.com uses the same mxmail.netease.com network, with 163mx hostsObserved 12 October 2026 (dig MX) |
| MX hosts | 126mx01, 126mx02, 126mx03.mxmail.netease.com, then 126mx00Observed 12 October 2026 (dig MX) |
| Answer to a made-up address | 550 User not found, returned at RCPT TOObserved 12 October 2026 (SMTP probe of a made-up recipient, no message sent) |
| Address rule | NetEase Mail covers @163.com, @126.com, @yeah.net and @vip.163.com personal mailboxes under one service and one privacy policySource: NetEase Mail privacy policy (Chinese) |
| Inactive accounts | A 126 free mailbox with no login for 90 days is frozen; it can't send or receive during the 30-day freeze, and after that the account and its mail are deleted and can't be restoredSource: 126 Mail terms, clause 19 (Chinese) |
| Inactive accounts | While frozen, the mailbox is emptied; logging in on the web and following the prompts unfreezes itSource: 126 Mail help: freeze policy (Chinese) |
What 126 Mail (NetEase)'s server says about a missing mailbox
The reply that matters is the one to RCPT TO, the step where the checking server names the recipient. 126 Mail (NetEase) answered our made-up 126.com address with 550 User not found. A 5xx code at that step is a permanent "no such mailbox", which is the same answer a real message would get, so SimpleVerifier marks the address invalid with the reason "Mailbox not found". A 250 at the same step means the mailbox exists and comes back valid.
Before trusting a "valid", a careful verifier also offers a random address that cannot exist. 126 Mail (NetEase) rejected ours, so 126.com is not a catch-all: a 250 for your address is a real signal. Temporary 4xx replies (421, 450, 451) are about the connection, not the mailbox, and come back risky with "Server would not confirm" rather than invalid. Hard bounce vs soft bounce explains why that split matters.
126.com mailboxes freeze after 90 days unused
NetEase's 126 Mail terms say a free mailbox with no login for 90 days is frozen. It can't send or receive for the next 30 days, and if the owner doesn't unfreeze it in that time the account, user data and mail are deleted and can't be restored. The help page on freezing adds that POP collection counts as activity and that a frozen mailbox is emptied.
So a quiet @126.com contact on an old list may be a frozen or deleted account, not just an unread one. Both pages are dated 2007 in their footers, so treat the exact day counts as the published policy rather than a guarantee of today's behaviour. Re-confirm contacts you haven't heard from in several months, and suppress any 126.com address that bounces permanently.
Cleaning 126.com addresses on a list
Because 126 Mail (NetEase) answers honestly, 126.com is one of the domains where verification removes bounces before they happen. Drop the invalid results, keep the valid ones, and re-check the risky ones later: a temporary reply on one day often turns into a clear answer the next.
A valid result only means the mailbox exists today. Addresses on an old consumer list go stale as people stop using them, so re-verify before each large send to an aged segment; how often to verify an email list gives a schedule. Upload the CSV to the verifier and download the valid, risky and invalid rows as separate files.
Common questions
- Can you verify @126.com addresses?
- Yes. @126.com answers mailbox checks one address at a time. The checker opens an SMTP conversation with 126.com's mail server, offers a random address first to rule out a catch-all, then names your address at RCPT TO and disconnects without sending. A rejection comes back invalid ("Mailbox not found") and an acceptance valid ("Mailbox exists"). Temporary replies come back risky. It always checks the syntax, the domain's MX records, disposable domains and role addresses such as info@ first.
- Can I check if a 126.com address exists without emailing it?
- Yes. A verifier connects to 126 Mail (NetEase)'s mail server, names the address at the RCPT TO step and disconnects before sending. On 12 October 2026 the server rejected a made-up 126.com address with "550 User not found", so a missing mailbox shows up as invalid and the owner receives nothing.
- What mail servers does 126.com use?
- On 12 October 2026, 126.com published these MX hosts: 126mx01, 126mx02, 126mx03.mxmail.netease.com, then 126mx00. You can look them up yourself with the free MX lookup tool.
- Why did a 126.com address come back risky instead of invalid?
- Risky means the server didn't give a permanent answer during the check, usually a temporary 4xx reply or a timeout. It isn't proof the address is bad. Check it again later; 126 Mail (NetEase) gave a clear rejection for a missing mailbox when we tested it.
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