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Email infrastructure of guidestar.org

According to Live Direct Marketing's daily DNS scan (July 13, 2026), guidestar.org (Tranco rank #10,796) receives mail via Microsoft 365 and sends through Amazon SES. It publishes no DMARC record — spoofed mail from this domain cannot be rejected by receivers.

Mailbox provider (MX)Microsoft 365
ESPs in SPFAmazon SES
SaaS senders in SPFPayPal Braintree
DMARC policyno record
Tranco rank#10,796
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does guidestar.org use?

guidestar.org 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.

What ESP does guidestar.org use?

guidestar.org authorises Amazon SES in its SPF record as of July 13, 2026.

Does guidestar.org enforce DMARC?

No — guidestar.org publishes no DMARC record at all (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 guidestar.org at Gmail, Outlook, Yandex and Mail.ru.
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