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According to Live Direct Marketing's daily DNS scan (July 13, 2026), aarp.org (Tranco rank #2,720) receives mail via Cisco IronPort and sends through Mailchimp, Salesforce, Mailgun. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Cisco IronPort |
|---|---|
| ESPs in SPF | Mailchimp, Salesforce, Mailgun |
| SaaS senders in SPF | none detected |
| DMARC policy | p=reject |
| DMARC record | v=DMARC1; p=reject; sp=none; fo=1; rua=mailto:dmarc_agg@vali.email; ruf=mailto:aarp-dmarc@feeds.opsecsecurity.com; |
| Tranco rank | #2,720 |
| Snapshot | 2026-07-13 (updated daily) |
aarp.org uses Cisco IronPort for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
aarp.org authorises Mailchimp, Salesforce, Mailgun in its SPF record as of July 13, 2026.
Yes — aarp.org publishes p=reject, the strictest DMARC policy (as of July 13, 2026).