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Stop fake emails in your name
กันอีเมลปลอมในชื่อคุณ
Fake emails can carry your domain's name in the From line. SPF, DKIM and DMARC are the three records a receiving mail server uses to tell your mail from a fake.
Today's price from ฿1,500
What you get
- Settings checked, with fixes฿1,500We check whether strangers can send email in your domain's name. We read your SPF, DKIM and DMARC settings, which say who may send email as you. We write the exact changes to make.
- Reports on mail sent in your name, checked monthly฿800 / monthEach month we read your domain's DMARC reports (lists of email sent in your domain's name) and tell you what changed.
How it goes
- We read your domain's SPF, DKIM and DMARC records.Hongdam · After you send the domain name
- We tell you whether strangers can send mail as your domain.Hongdam · After the records are read
- You get the exact records to fix them.Hongdam · With the answer
- With the monthly option, we read your domain's DMARC reports and say what changed.Hongdam · Monthly
- We read your domain's SPF, DKIM and DMARC records.Hongdam · After you send the domain name
- We tell you whether strangers can send mail as your domain.Hongdam · After the records are read
- You get the exact records to fix them.Hongdam · With the answer
- With the monthly option, we read your domain's DMARC reports and say what changed.Hongdam · Monthly
Useful facts
- Google asks all senders to Gmail accounts to use SPF or DKIM. Senders of more than 5,000 messages a day to Gmail need SPF, DKIM and DMARC. The rules began on February 1, 2024. support.google.com
- Bulk senders to Gmail also keep the spam rate in Postmaster Tools below 0.30% and support one-click unsubscribe in marketing mail. support.google.com
- Outlook.com's rules for domains sending more than 5,000 emails a day need SPF and DKIM to pass and a DMARC record of at least p=none. Since May 5, 2025, mail that does not meet them goes to the Junk folder. techcommunity.microsoft.com
- Google's DMARC page lists three policies. none delivers the message and logs it in a daily report. quarantine sends it to spam. reject turns it away. knowledge.workspace.google.com
What others charge
| A Fastwork seller's Google Workspace set-up with DNS, SPF, DKIM and DMARC (3 days) | ฿3,450 fastwork.co |
|---|---|
| A Fastwork seller's email troubleshooting package: delivery failures, DNS, SPF, DKIM and DMARC (7 days) | ฿1,500 fastwork.co |
| Hongdam · Stop fake emails in your name | from ฿1,500 |
What people ask
What does a DMARC record do?
A DMARC record is a TXT record in a domain's DNS. It tells receiving servers what to do with mail from the domain that fails SPF or DKIM checks, and where to send reports. knowledge.workspace.google.com
Where do DMARC reports go?
To the address in the rua tag, written with mailto:. Google's page names a group or a dedicated mailbox, and says report volume can be high. knowledge.workspace.google.com
Does a domain need DMARC to send to Gmail?
For senders of more than 5,000 messages a day to Gmail, yes: SPF, DKIM and DMARC. For other senders, Google asks for SPF or DKIM. support.google.com
What happens to mail from a domain that fails Outlook's rules?
Since May 5, 2025, Microsoft routes it to the Junk folder. Its post says rejection is planned for a later date, with the error 550 5.7.515. techcommunity.microsoft.com
How long do SPF and DKIM run before DMARC is turned on?
Google's page says to turn on SPF or DKIM first and allow 48 hours for them to take effect before enabling DMARC. knowledge.workspace.google.com
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Small print
Sources read 2026-11-04.