Txt @ v=spf1 ip4 all

I see it this way: The only reason to not use -all is if you are unsure that you have properly listed all the sending IPs associated with your domain. I use -all for my own domains. If the sending IP is not listed or included in the record, the mail is coming from an illegitimate source. Hi Laura, i have been working at this for over a month and i still get email spoof.

Actually i just noticed something i used your SPF Checker and entered my domain and it said this: This is an approximate list of the IP addresses that the domain optimasystems. If you go to the DNS tab on the authentication page, it shows you what all the lookups are.

Will it soft-fail the included servers only, and hard our own? This is a debug setting and should only be used during testing and initial configuration setup. The reason why google does do it by the way is because it sends a large amount of mail on behalf of others and those others are unable or do not understand how to create a suitable spf record. I am currently in the process of working through all the 3rd parties that are sending as my domain.

I have created a sub domain email. The plan is to use a separate SPF record, some of the 3rd parties have advised to add their spf record to our own spf by a way of an Include.

Regarding the Include record. Some instances suggest to add a? Are their any frightening differences? Your site only lists This goes, especially, for large organisations who complain about having no control over their list of sending IPs.

This is not an acceptable argument. This article only goes over the TXT version. Laura says to never use? Could someone explain why? I came here looking for the answer and am still a little bit confused. Soft-fail means that you expect most mail to come from these servers, but some valid mail might come from other servers. Suggested action is accept but mark. Suggested action is accept. Laura, Thank you for explaining that to me. This was what was confusing me.

So every message will pass. For mail I send from wordtothewise. If you want to drop me an email use the contact address from the system showing the fail I will take a look. But there are other issues that will cause a SPF fail, too. But I need to see the message from the problematic system in order to diagnose it. Laura, great forum, thank you. Having digested this probably too much I see no reason whatsoever to ever use the?

Can you determine a reason why anyone would use it? When activating SPF-record for production it should in my opinion be with -all or nothing at all.

Hi Laura, thanks for this interesting post and for sharing your knowledge. I performed some searches to approach the question from a statistic point of view. From this meaningful but very short list: us. Hi, I have my own vps. Kind Regards, Thank you. Some people set up automatic email forwarders from their custom domain to a webmail account e.

Gmail , and these emails will obviously fail SPF, but the emails are still legitimate. This is why no major email provider will outright reject emails that fail SPF checks.

Modifiers are optional. A modifier may appear only once per record. Unknown modifiers are ignored. The SPF record for domain replace the current record. The macro-expanded domain is also substituted for the current-domain in those look-ups.

If an SMTP receiver rejects a message, it can include an explanation. An SPF publisher can specify the explanation string that senders see. The domain is expanded; a TXT lookup is performed. The result of the TXT query is then macro-expanded and shown to the sender. Other macros can be used to provide an customized explanation. Forums Tools. Perhaps example. If example. Similarly for offsite. For example, hotmail.

If it does resolve, this mechanism results in a match. Look up the A record for example. If it matches 1. If there is no match, other than the included domain's " -all ", the include as a whole fails to match; the eventual result is still Fail from the outer directive set in this example.

The openspf. For example, this SPF record is published on example. The exists mechanism takes a domain parameter. SPF performs an A query on the domain, and if a result is returned, this mechanism matches. If there is no SPF record on example. Otherwise, the SPF record on example.

If the evaluation of an SPF record fails due to a mechanism match like "-all", and the exp modifier is present, an explanation string is returned. When some host other than example. To add any of the services above, simply insert an include mechanism for each of its SPF records right before the terminating mechanism of your existing SPF record.

Only one SPF record can be published on any particular domain. If your SPF record has syntax errors, the receiving server immediately returns a PermError without further record evaluation.

This means all your emails will fail SPF authentication and might not reach the inbox.