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Email infrastructure of southwest.com

According to Live Direct Marketing's daily DNS scan (July 13, 2026), southwest.com (Tranco rank #4,047) receives mail via Unknown / Other and sends through Campaign Monitor. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Unknown / Other
ESPs in SPFCampaign Monitor
SaaS senders in SPFAmadeus
DMARC policyp=reject
DMARC recordv=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_agg@dmarc.everest.email; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_fr@dmarc.everest.email;fo=1
Tranco rank#4,047
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does southwest.com use?

southwest.com uses Unknown / Other for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

What ESP does southwest.com use?

southwest.com authorises Campaign Monitor in its SPF record as of July 13, 2026.

Does southwest.com enforce DMARC?

Yes — southwest.com publishes p=reject, the strictest DMARC policy (as of July 13, 2026).

DNS records say who should deliver your mail — they don't say whether it lands in the inbox. Run a free inbox placement test for southwest.com at Gmail, Outlook, Yandex and Mail.ru.
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