Trình tạo bản ghi DMARC

Tạo bản ghi DMARC TXT cho xác thực email bằng chính sách, địa chỉ báo cáo, alignment và tỷ lệ áp dụng.

Cài đặt DMARC

Tên miền

Policy (p)Subdomain policy (sp)

Rollout percentage (pct): 100%Aggregate report emails (rua)

dmarc@example.com

Forensic report emails (ruf)

DKIM alignment (adkim)SPF alignment (aspf)

Failure options (fo)Report interval seconds (ri)

DNS record typeTXT

Host nameTXT value

v=DMARC1; p=none; rua=mailto:dmarc@example.com; adkim=r; aspf=r; fo=1

Record length69

Report URIs1

EnforcementGiám sát

Domain is ready

Publish this TXT record at the _dmarc host for the domain.

Aggregate reporting enabled

rua reports help you monitor legitimate and failing email sources.

Start with monitoring

p=none is safest while you validate SPF, DKIM, and legitimate senders.

TXT length is OK

The record is within the common 255-character DNS TXT string limit.

1. Monitor

Use p=none and collect rua reports until all legitimate senders are known.

2. Quarantine

Apply quarantine to a small pct first, then increase as failures are resolved.

3. Reject

Move to reject after SPF/DKIM alignment is stable and reports look clean.