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According to Live Direct Marketing's daily DNS scan (July 13, 2026), bell-labs.com (Tranco rank #3,880) receives mail via Microsoft 365 and sends through Marketo (Adobe), Amazon SES. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).
| Mailbox provider (MX) | Microsoft 365 |
|---|---|
| ESPs in SPF | Marketo (Adobe), Amazon SES |
| SaaS senders in SPF | none detected |
| DMARC policy | p=none |
| DMARC record | v=DMARC1;p=none;pct=100 |
| Tranco rank | #3,880 |
| Snapshot | 2026-07-13 (updated daily) |
bell-labs.com uses Microsoft 365 for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
bell-labs.com authorises Marketo (Adobe), Amazon SES in its SPF record as of July 13, 2026.
No — bell-labs.com publishes p=none, which only monitors and does not block spoofing (as of July 13, 2026).