The“-all”symbol means hard fail, meaning the email server should reject the email. Other options include“~all”(soft fail, accept but mark as potentially suspicious if the email doesn’t come from authorized senders) and “?all” (neutral, no policy). Obviously, this is just an example...
However, if the forwarded message hard fails SPF, even though it still passed DMARC, it may still very well be marked as spam. A receiving spam filter may not understand “hard fail SPF should be negated by passing DMARC” and instead assign a heavy spam weight ...
Another important reason for implementing DMARC is to monitor your email deliverability. You should not take it for granted that all your legitimate emails are authenticated and delivered. Your legitimate emails can fail authentication for various reasons, including but not limited to: the ...
+, or Pass. This indicates a successful match with an authorized sender, meaning the email came from an authorized server. -,or Hard fail. This indicates a failed match, potentially marking the email as spam. The email is, therefore, rejected. ...
First, a domain should publish an SPF Hard Fail in its SPF record if they don’t have anything else (no DKIM, no DMARC).This tells others to mark a message as spam – or give it a heavy weight – if a message comes from an IP that is not in the domain...
–Hard Fail(-all) – An email sent with a server/IP address that doesn’t match with the SPF record, will not pass SPF authentication. ~Soft Fail(~all) an email sent with a server/IP address that doesn’t match with the SPF record will soft fail SPF, which means that the host sho...
10 min read Updated date August 6, 2024 Post type Blog Topic Email Marketing Tips Email Authentication – Don’t Let Your Emails End Up in Spam Emails that end up in spam can hurt your business. Find out how to set up email authentication to increase your chances of hitting the inbox. ...
it means only emails from IP address 192.168.0.1 can pass SPF check, while all emails from any IP address other than 192.168.0.1 will fail. Therefore, no email from the scam server at IP address of 1.2.3.4 will ever pass SPF check. ...
Domain owners are also allowed to publish different types of authorization. [table] Statement,Result,Meaning +all,pass,Allow all mail -all,fail,”Only allow mail that matches one of the parameters (IPv4, MX, etc) in the record” ~all,softfail,Allow mail whether or not it matches the param...
I think one of the reasons this is hard to satisfactorily answer, is because your core argument seems to be based on a theoretical ideal situation, not on the real world. In principle, is DKIM not enough? Yes, sure, if your DKIM always works and no mail server ever rewrites your ...