MX records for frontier.com
Live MX lookup for frontier.com: 3 mail hosts, run by Yahoo Mail.
try:
- mail hosts
- mta6.am0.yahoodns.net, mta5.am0.yahoodns.net, mta7.am0.yahoodns.net
- provider
- yahoo
- spf record
- v=spf1 include:_spf.frontier.com include:_spf.mail.yahoo.com include:sendgrid.net include:mktomail.com include:icpbounce.com include:spf-0019f703.pphosted.com include:_netblocks.act-on.net ip4:44.238.97.35 ~all
- dmarc policy
- none
- dmarc record
- v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
- disposable domain
- no
- free consumer provider
- yes
Mail servers for frontier.com
DNS lists 3 mail hosts for frontier.com, starting with mta6.am0.yahoodns.net. Lower priority values are tried first; the rest exist for failover.
Who runs the mail
The hosts match the pattern of Yahoo Mail. Yahoo's servers (shared by Yahoo Mail and AOL) are conservative with handshake replies and often defer or greylist probes, so a mailbox check can come back unverified even for a real inbox. Spaw re-checks those addresses when you pass a callback.
What this means for verification
For frontier.com, verification runs the whole pipeline: syntax, live MX, the open lists, and then the SMTP handshake with the mail host, with no message ever transmitted. Each verdict carries a machine-readable reason.
More checks for frontier.com
checked 2026-09-03 · sources: live-dns 2026-09-03 · disposable-domains 2026-09-02 · free-provider-domains 2026-09-02 · mx-provider-patterns 2026-09-03
Need this at scale?
The Spaw API runs the same checks plus mailbox-level SMTP verification, batch and bulk endpoints, and list monitoring — 10 free lookups a month, no card required.