Questions tagged [dmarc]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
23 views

Is DMARC relaxed alignment for SPF/DKIM bad?

After studying authentication mechanisms available to prevent e-mail spoofing, still I don't understand how to choose between the relaxed alignment and the strict alignment in DMARC for SPF and DKIM, ...
1
vote
1answer
19 views

Does DMARC help deliverability or is it simply a reporting mechanism?

My client, has SPF and DKIM set up correctly but is having multiple failures when emailing certain organisations when emailing multiple people in the organisation. Recently we asked the Exchange ...
1
vote
1answer
19 views

Webform Email Does Not Pass DMARC

I am setting up DMARC, SPF and DKIM records for the first time. I'm using WordPress, Elementor, SiteGround, and Google Workspace. When submitting a Form from my website, sent from arandomemail@mysite....
1
vote
3answers
321 views

Do subdomains inherit DKIM keys? Can a DKIM SDID for one domain be used to validly sign mail that appears to be sent from another domain?

Suppose no DKIM keys are defined for sub.example.com, but a key with selector mykey is defined for example.com; that is, a DKIM record exists at mykey._domainkey.example.com in the DNS. Can <alice@...
1
vote
1answer
68 views

DMARC report: systematic SPF failure for a domain

I get DMARC reports sent from various different sources. All of the reports generally have <result>pass</result> for all of the sections. However, the reports from Google always have SPF ...
3
votes
2answers
202 views

BIMI Validation failure

I have set up a BIMI record for my business, but when checking with 'https://www.mailkit.com/resources/bimi-inspector' I am told that my BIMI record is valid: default._bimi.domain.co.uk 3600 IN TXT "...
2
votes
1answer
1k views

Why is G Suite passing DMARC when alignment fails?

I have a G Suite account with a primary and secondary domains. I have successfully setup DMARC for my primary domain. Now I am trying to setup DMARC for my secondary domain. SPF is setup for my ...
0
votes
1answer
84 views

Which email servers currently send DMARC aggregate reports - and which do not yet?

I've implemented a DMARC policy for my company's outgoing email. But I'm receiving surprisingly few aggregate reports back. So far only three domains: gmail.com; yahoo.com; emailsrvr.com Does anyone ...
1
vote
1answer
93 views

DKIM fails in DMARC report but not when checked independantly

I've been getting DMARC reports for a new domain I setup saying that the DKIM check is failing. The emails don't get blocked because I haven't set it up to be quarantined or blocked yet. If I check ...
0
votes
1answer
1k views

DMARC record without rua or ruf entry

I have set up my server with SPF and DKIM and activated DMARC with v=DMARC1; pct=100; ruf=mailto:postmaster@example.com; rua=mailto:postmater@example.com; p=reject So far everything works ...
3
votes
2answers
68 views

Doesn't DMARC expose your email address?

G Suite states that one can add a DMARC record with an rua field to get reports about DMARC activity by email: v=DMARC1; p=reject; rua=mailto:youremail@example.com But doesn't this basically ...
9
votes
2answers
956 views

Why is google.com trying to send emails from my domain?

I pulled up a DMARC Analyzer report showing emails received on behalf of my domain: In addition to my normal authorized (SPF+DKIM aligned) personal emails from the protonmail.ch domain, there are ...
1
vote
1answer
52 views

Missing “policy” stated by Yahoo since DMARC implementation?

Since the implementation of DMARC on our server we get feedback reports from Yahoo, stating we do not publish a "policy" which therefore cannot be evaluated (to my understanding). However the same ...
2
votes
1answer
629 views

DMARC failure on forwarded SharePoint Online emails

I have a client that uses SharePoint Online but insists on using Gmail. Each user has a O365 account with an Exchange Online mailbox and mail flow/delivery options are set to forward all incoming mail ...
2
votes
2answers
4k views

MxToolbox says dmarc DNS record is not found despite having one configured with NameCheap

My emails get stuffed into spam folder. I havent sent it to anyone but myself. MxToolbox displays 1 error: dmarc DNS Record not found These are my namecheap configurations regarding dmarc, dkim ...