Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [spf]

Sender Policy Framework is a standard by which the owner of a domain uses a specially formed DNS record to advertise which hosts are authorized to send email for the domain.

Sender Policy Framework (SPF) is a technique to prevent e-mail sender address forgery. With SPF system administrators add information about allowed senders for particular domain in a DNS server's TXT and/or SPF record.

Please have a look at the canonical question What are SPF records and how do I configure them.

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One SPF Recored different Hosts

We are working with bind9 in our center and we have two different mail servers. One is for our company domain and the other is for customer domains. At the moment we have the simple entry in the file: SPF "v=spf1 mx -all" TXT "v=spf1 mx…
Phillip St.
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Changing e-mail authentication-related DNS records

Suppose that I have e-mail service on my domain, say example.com, with a Sender Policy Framework (SPF) Domain Name System (DNS) record ("TXT" type) for authenticating sending Mail Transfer Agents (MTAs). Also, suppose that I have either DomainKeys…
user553702
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How to add SPF domain record for one email address only

I have a VPS hosting with public IP and custom domain. I am sending email from the server, but the email is recognized as spam by google. I want to add and SPF domain record. I could follow the documentation, but I could restrict it a bit more. I…
Tomas Kubes
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Mail server with different IP than webserver - getting 554 error

I have a webshop running on a Digital Ocean droplet, while the email inbox for the same domain is running on a different VPS. All of the sudden some of the emails sent by the webshop are being rejected by the recipient with the following error…
Benjamin P.
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Why does Google junk mails from my server?

I have a send-only mail server setup on an Ubuntu VPS. The mail server is only used to send out registration e-mails from a web application. I have the following configured: DomainKeys Identified Mail (DKIM) Sender Policy Framework…
Ralph
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Add a second IP to SPF record, from an external SMTP server

I would like to add the IP of an external SMTP server to an existing SPF record, which is looks like this: "v=spf1 a mx ip4:185.6.139.6 a:frey.mailpool.1.netmask.hu a:frey.mailpool.2.netmask.hu a:frey.mailpool.3.netmask.hu ~all" Isn't will it mess…
Domi Szécskai
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How to combine two SPF (TXT) records when one is from a local mail server?

I would like to add a second SPF TXT record to my domain, allowing an external mail-server to send emails from my domain so it won't be classified as spam on the receiving end. I've read that I should not create two separate TXT records, but combine…
Ela782
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Creating a host record for an IP address to be used for SPF

I would like to allow an email service to be a valid sender for my domain. This service has dedicated a single IP for my account. Instead of: v=spf1 ip4:1.2.3.4 -all Will the following behave the same assuming I have a host record corresponding to…
Jaxaeon
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SPF record getting soft failed due to dynamic ip

The SPF soft fail error I'm getting is: Received-SPF: softfail (google.com: domain of transitioning noreply@example.com does not designate 64.202.189.129 as permitted sender) client-ip=64.202.189.129; Issue is, the client ip mentioned above is…
Guy in the chair
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AWS: Kitterman SPF record test failing

I have had a couple of emails not arrive in my inbox. One resent the email and I received it, the other told me that the error was: non valid MX response I have been looking at my AWS SPF records and using the Kitterman testing tools I currently…
Doahh
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What do the + signs do in these DNS TXT records?

Is there a specific reason why some records contain the '+' sign and others do not? Are these handled similar to a common search function where you can preface terms with + to include them, but it's usually redundant because they are included by…
user1145643
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E-mail reputation using our domain as the from sent by e-mail marketer

My boss wants to send a marketing e-mail to a large group of our customers. I personally feel that it's outside of our core business and don't support it, but that's about all I can do. Normally the e-mail marketer uses their domain to send from -…
Steve
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DNS, SPF Web Form, Mail not arriving

I need to be able to receive emails from my php webform on my website, I use Google Apps for the mail recipient and my website is hosted with Godaddy. I receive email from other places and I have looked and I think the problem is that the web sever…
Poiple Shadow
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Can't figure out how to properly setup SPF record

I have a Django web app and I use Django's email backend to send out emails. I can't figure out why emails are ending up in spam folder. My domain host is GoDaddy so I added a TXT record *.example.com TXT v=spf1 a ~all This is the header of emails,…
sql-noob
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mail server Best practices PTR and SPF

I have 2 domain names in my server : domain1.com is the main domain that I am using as a nameserver (ns1.domain1.com and ns2.domain1.com) and domain2.com (I am using it to host my web application and sending emails for my web application using…
saad
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