dmarcian alternative: how FaultyPacket checks DNS and DMARC in your browser
Last reviewed 31 October 2026
People looking for an alternative to dmarcian often want to set up DMARC, SPF and DKIM and keep an eye on their DMARC reports. This page gives a short, factual description of dmarcian, taken from its own public pages, and then explains how FaultyPacket works, so you can choose what suits you.
What dmarcian is
dmarcian is a DMARC service, according to its own website.Source: dmarcian.com/about/, checked 31 October 2026.
- Its about page says it was founded in 2012 by one of the primary authors of the DMARC specification.Source: dmarcian.com/about/, checked 31 October 2026.
- It states it has offices in North America, Europe and Asia Pacific, and runs a free DMARC learning curriculum called DMARC Academy.Source: dmarcian.com/about/, checked 31 October 2026.
How FaultyPacket works
This section describes FaultyPacket's own approach. It is not a description of dmarcian.
Scans run in your browser
The free scanner looks up your DNS records through public DNS-over-HTTPS resolvers, straight from your browser. There is no sign-up.
No scan data held
FaultyPacket does not log or store the domains you scan (see our privacy notice). Optional scan history stays in your own browser.
One-off packs
Fix scripts, policies and server configs come as one-off downloadable packs, sold individually, with no account to create.
Local RUA Workbench
The Local RUA Workbench reads DMARC aggregate reports on your own machine: one offline HTML file and a Python tool. Nothing is uploaded.
DMARC aggregate (RUA) reports are sent to the address in the rua= tag of your DMARC record. If you prefer to read the reports yourself, you can point that address at a mailbox you manage and open the files on your own machine with the Local RUA Workbench. Our guide on reading a DMARC aggregate report explains the format.
About this page
dmarcian and the other product names on this page are trade marks of their respective owners. FaultyPacket is not affiliated with, endorsed by or sponsored by any of them. The description of dmarcian uses solely the public pages linked above, as they read on the date shown, and makes no claim about how well any product works.
Right of reply: if anything here is out of date or inaccurate, email [email protected] and we will review and correct it. These pages are re-checked against their sources twice a day and reviewed in full every 90 days.
Other factual notes: MxToolbox alternative EasyDMARC alternative Valimail alternative PowerDMARC alternative