Email domain · Yahoo Mail
myyahoo.com email servers, SPF and DMARC
Mail for @myyahoo.com goes to mta5.am0.yahoodns.net (MX priority 10) and 2 backup hosts, as DNS showed on 5 November 2026. These are Yahoo Mail servers. The domain publishes an SPF record v=spf1 redirect=_spf.mail.yahoo.com and a DMARC policy of p=reject, which decide whether mail claiming to be from @myyahoo.com is trusted.
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myyahoo.com mail DNS on 5 November 2026
| Priority | MX host | Platform |
|---|---|---|
| 10 | mta5.am0.yahoodns.net | Yahoo Mail |
| 10 | mta6.am0.yahoodns.net | Yahoo Mail |
| 10 | mta7.am0.yahoodns.net | Yahoo Mail |
| SPF | v=spf1 redirect=_spf.mail.yahoo.com |
|---|---|
| DMARC | v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; |
| MTA-STS | None published |
| TLS reporting | None published |
Read on 5 November 2026 with dig against 1.1.1.1 (8.8.8.8 as fallback); nothing sent to the mail servers. Check the records today with the email provider lookup.
myyahoo.com MX records
myyahoo.com publishes 3 MX hosts, all at priority 10, so senders spread mail across them.
48 other domains we checked on the same day also hand their mail to Yahoo Mail servers, with different records from myyahoo.com: ameritech.net, aol.at, aol.be, aol.ch, aol.com.au, aol.com.br, aol.com.mx, aol.de and 40 more.
myyahoo.com SPF record
The record on 5 November 2026 was v=spf1 redirect=_spf.mail.yahoo.com.
In plain terms, it delegates to _spf.mail.yahoo.com. The top level uses 1 DNS-querying term; SPF allows 10 in total including nested includes (RFC 7208 §4.6.4).
myyahoo.com DMARC policy
The record is v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];.
p=reject asks receivers to refuse mail that fails DMARC.
Aggregate reports go to rua.agari.com, so the domain's owner sees who sends mail as @myyahoo.com.
What that means for you: if a contact gives an @myyahoo.com address and you send to them, nothing changes. But never put an @myyahoo.com address in the From line of mail sent through your own tool or ESP. It can't pass DMARC for myyahoo.com, and this policy tells receivers to refuse it.
Domains on the same mail servers as myyahoo.com
3 other domains published exactly the same MX hosts and SPF record as myyahoo.com on 5 November 2026: yahoo.co.il, yahoo.com.tr and yahoo.com.ve. Mail to any of them lands on the same servers.
myyahoo.com shares mta7.am0.yahoodns.net with yahoo.com. When we tested those servers for yahoo.com on 7 October 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with ymail.com. When we tested those servers for ymail.com on 12 October 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with cox.net. When we tested those servers for cox.net on 12 October 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with frontier.com. When we tested those servers for frontier.com on 13 October 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with rocketmail.com. When we tested those servers for rocketmail.com on 13 October 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.ca. When we tested those servers for yahoo.ca on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.com.au. When we tested those servers for yahoo.com.au on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.co.nz. When we tested those servers for yahoo.co.nz on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.com.mx. When we tested those servers for yahoo.com.mx on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.com.ar. When we tested those servers for yahoo.com.ar on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.cl. When we tested those servers for yahoo.cl on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.com.co. When we tested those servers for yahoo.com.co on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with yahoo.com.pe. When we tested those servers for yahoo.com.pe on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta5.am0.yahoodns.net, mta6.am0.yahoodns.net and mta7.am0.yahoodns.net with frontiernet.net. When we tested those servers for frontiernet.net on 4 November 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
myyahoo.com shares mta7.am0.yahoodns.net with yahoo.com.br. When we tested those servers for yahoo.com.br on 7 October 2026, the result was: Not verifiable. The server accepts any recipient, real or not.
Can you verify @myyahoo.com addresses?
Our checker treats @myyahoo.com like any domain: syntax, MX, disposable and role checks first, then a made-up address to rule out a catch-all, then your address at RCPT TO, disconnecting without sending. We have not tested @myyahoo.com itself, but its mail goes to the same servers as yahoo.com, so expect @myyahoo.com results to follow the pattern described there. Each result carries its own reason.
Cleaning a list with these addresses
DNS tells you where mail goes, not whether one person's mailbox still exists. For a list, run the whole file through a verifier before you send: invalid rows come out, risky rows (catch-all, unknown, refused) go in their own segment, and valid rows are safe to mail.
What Yahoo Mail documents for senders
- Yahoo asks every sender to authenticate with SPF and DKIM, and bulk senders to publish DMARC, offer one-click unsubscribe and keep spam complaints low. Yahoo Sender Hub: best practices
- Yahoo publishes the meaning of its own SMTP replies, including the deferrals it uses to slow unfamiliar senders. Yahoo Sender Hub: SMTP error codes
Common questions
- What are the MX records for myyahoo.com?
- On 5 November 2026:
mta5.am0.yahoodns.net(priority 10),mta6.am0.yahoodns.net(priority 10),mta7.am0.yahoodns.net(priority 10). - Does myyahoo.com have SPF and DMARC?
- On 5 November 2026
myyahoo.compublished an SPF recordv=spf1 redirect=_spf.mail.yahoo.comand a DMARC policy ofp=reject. - Is myyahoo.com a disposable email domain?
- No.
myyahoo.comis not on the disposable domain list our checker uses, so @myyahoo.com addresses are checked like any other mailbox. See the disposable domain checker for the list. - Is myyahoo.com the same mail system as yahoo.co.il?
- Its DNS says so: on 5 November 2026 both published the same MX hosts and SPF record, so mail to either lands on the same servers.
Free checks for @myyahoo.com lists
- Bulk email checker for a pasted list or CSV
- Verify a whole file with a reason for every row
- Yahoo address checker
- SPF lookup counter
- MTA-STS checker
- Disposable email checker
Another domain? See every email domain we have mapped and what our checker does at each mailbox provider.
Got a list with @myyahoo.com addresses?
Sign in with Google and the first 100 addresses are checked free: valid, risky and invalid, with the reason for each row and a file to download. No card. After that, plans start at $9/mo for 2,500 emails a month.
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