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.

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How does SPF reduce backscatter with a Google Apps account

Reading up on the SPF spec, I understand that SPF designates certain IPs as valid sender SMTP server IPs. For Google Apps, the SPF record is supposed to be v=spf1 include:_spf.google.com ~all. The ...
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374 views

SPF Records for QuickBooks Online

QuickBooks online sends email from the email address listed on the account. This is always going to be the email address of the business rather than an email address that Intuit have permission to ...
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2answers
885 views

Sent mails go to spam on Gmail but not on Yahoo

Why is a message like the following going to Gmails SPAM folder? I noticed that the same message goes correctly to Yahoo!s Inbox, but observing the header i see (in the received Yahoo message the ...
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3answers
1k views

Exchange and SPF Records

I've created an SPF record on 123-Reg, which is working great. But my question is how Exchange servers know that an SPF record exists when they receive mail from a domain. How does Exchange know it ...
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2answers
608 views

Is this SPF record correct for me?

I'm completely new to Stack Overflow, so Hi! I need to add an SPF record to my site "main.com" (not the real address) to allow an email publishing company "emailpublishers.com" (not the real address) ...
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3answers
92 views

SPF settings for subdomains using common mail server

I am having trouble getting subdomains to pass SPF checks when sending mail through a common mail server (AKA relay host). Here's the current setup: MX 10 mail.example.com. example.com. TXT ...
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2answers
141 views

SPF record for hostname of postfix instead for every sending domain

I am having a server reachable via server.com that has a postfix mailserver running with the hostname gaia.server.com. Because reverse DNS is only needed for mail purpose (afaik) I changed the reverse ...
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2k views

Combining multiple SPF records - SenderID - kind of lost

Tried to read up on SPF record creating but I am a bit lost. I need to combine and create an SPF record because our email is not getting through. Here are the ways we send email: Daily ...
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735 views

postfix mails goes to hotmail junk

I have a problem that I can't solve which is whenever I send an email from my mail server to Hotmail, it gets into the Junk folder. I'm using CentOS 6.3, SELINUX is disabled. Here are my named zone ...
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2answers
115 views

Proper SPF setup to allow my server and Google

This is my first time setting up SPF records, so I'd just like some experienced eyes to make sure I'm doing this properly. I have several domains, but I'll focus on one of them: propertysolved.com I ...
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3answers
577 views

Error Seting Spf for mail Server

I try using spf record to reduce email spoofing , that cause my domain blocked by others . I have 3 mail server : mail.mydomain.ac.id mail.a.mydomain.ac.id mail.b.mydomain.ac.id ...
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109 views

How to do spf record entry in dns?

I have a postfix configured cent0s 5.5 mail server in 64 bit configuration. I want to know, how to record sender policy framework(SPF) entry in my domain name server zone files.
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2answers
416 views

Media Temple, SPF, and Changing IP Addresses

OK...so I have a hosting account with Media Temple and recently had problems with mail servers marking my sent emails as SPAM. I looked into the issue and read it's a good idea to implement SPF which ...
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1answer
501 views

How can I add a secondary DNS server for specific record types?

My hosting provider won't support certain DNS records (SPF, long CNAMEs, etc), but I refuse to switch providers. I have my own local DNS with a forward zone for my domain, and I'd like to use my ...
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1answer
1k views

SPF softfail for forwarded emails to Gmail account

I've been able to make SPF pass on all the sent emails from my Postfix server. But for forwarded domains which simply redirect email to my gmail id I see softfail in the SPF. For example if I send ...
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298 views

hMailServer forwarding and distribution lists with SPF checking

I have installed and configured hMailServer, primarily to allow me to create a distribution list for a private organisation, and some email address aliases. This is so that members of the ...
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1answer
95 views

Should I put SPF checks before or after RBL checks in Postfix SMTP server?

I am setting up a Postfix SMTP server (pre v2.10) and was thinking to put the smtpd_recipient_restrictions as follows. smtpd_recipient_restrictions= permit_mynetworks, ...
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368 views

Email authentication without modifying DNS records

Can someone explain how Mailchimp does email authentication without user having to update SPF or DKIM records? Quote from Mailchimp: When you use MailChimp's authentication, campaigns will pass ...
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2answers
3k views

cPanel Server Email to Gmail marked as Spam, SPF, DKIM, and rDNS pass

Having this issue on a cPanel server 11.34.1 that hosts multiple domains. Email originating from this box on the sendingdomain.com address is flagged as Spam by Gmail. I've implemented SPF and DKIM, ...
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2answers
648 views

Unable to send mail to hotmail from rackspace cloud

I'm having issue sending mail from postfix on a rackspace cloud instance for my domain. Hotmail says "550 SC-001 (SNT0-MC4-F35) Unfortunately, messages from 198.101.x.x weren't sent. Please contact ...
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1answer
149 views

SPF for two different outgoing servers?

I have ran into a problem that I think someone should have a really clever answer for. Today we have our own mailserver that looks like "mail.domain.com" – which we use to send out mail to our ...
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1answer
3k views

SPF Records - mechanism not recognized by this client. unknown mechanisms:

Having a bit of a problem with my hosting company rackspace cloud and SFP records. I asked them to updated it on there DNS. This is what they set it as: seonky.com. 300 IN TXT "v=spf1 ip4:ubuntu ...
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127 views

Confused about enhancing existing Google SPF to permit server-sent emails also

I'm using Google Apps for my domains email, and have the Google suggested SPF set: "v=spf1 include:_spf.google.com ~all" This works as expected. In certain cases though, my web app sends emails to ...
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1answer
917 views

Changing SPF (Sender Policy Framework) record for Google Apps

My boss asked me to set up Google Apps for a client and basically I have done everything including setting up MX records in DirectAdmin and re-creating the email accounts in Google Apps. I also sent ...
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2answers
140 views

SPF problem with incoming emails

I use sendmail MTA and dovecot and have SPF configured, my domain txt entries: xx.pl descriptive text "IN" "v=spf1 ip4:x.x.x.x ip4:x.x.x.x ip4:x.x.x.x ip4:x.x.x.x a:mail.yy.pl a:mis.xx.pl ...
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430 views

Windows Server 2003 Enterprise - How Can I Add a SPF Record to DNS?

I'm in the DNS management console, and I can't find SPF in the new record type list. What do I need to do to create a SPF record?
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1answer
58 views

How to configure SPF and DKIM to prevent mail going to spam folder

x-store-info:4r51+eLowCe79NzwdU2kR0zqpsRfiBoycNOl1Rdc4Wf7430jtHWQcYIrKJBAYArutl6yTQ5VQNWAmHikfoeKC6OfxZYs5RQXt5EONp5Fb+tgLbPo7J+jhd2D/FrCdQyzXUlVTtfPnBo= Authentication-Results: hotmail.com; ...
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1answer
33 views

Is SPF record necessary for single domain IP?

My question is simply this - I have a domain where all the DNS records to a single box. Do I need to setup an SPF record in this instance as SPF is designed for where a different IP is sending emails ...
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2answers
54 views

SPF record setup ip4 or include

I have two domains (example.com 192.168.0.1 and example.net 192.168.0.2) and I want to allow example.net to send email from foo@example.com In my SPF I currently have: v=spf1 a mx ip4:192.168.0.1/32 ...
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39 views

enom spf record for mailjet smtp service will not save include:spf.mailjet.com [duplicate]

I have saved my spf record such that it looks correct in the enom host record interface. However, when I run a test on it - the published record does not display the include:spf.mailjet.com portion. ...
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48 views

Exim mailing list with remote recipients

Premises (fictional names) foo is an external domain, of which the MTA is out of my control; foo has SPF setup such that mine servers cannot send email as @foo; bar is another external domain, of ...
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1answer
64 views

Unable to make DNS SPF pass for my domain

I've placed this TXT record in the DNS for domain : admissioncourses.com : v=spf1 a mx mx:mail.admissioncourses.com ~all Ideally all I want is that only email sent from admissioncourses.com( and ...
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2answers
62 views

SPF with a Mail Gateway: do I need to put all my mail servers?

I always put all my Mail Servers in SPF declarations, but I'm not sure if this is the correct way to implement SPF. All my mail got routed through a Mail Gateway. Everything goes first to this server ...
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1answer
68 views

PermError SPF Too Many Lookups and Reduction

My current SPF record is as follows: v=spf1 mx include:servers.mcsv.net include:xero.com -all The above cause the SPF validation to fail. Using http://mxtoolbox.com/SuperTool.aspx?action=txt, I ...
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1answer
92 views

Use greylisting only if SPF fails

I have noticed that more and more people using the DNS based SPF records and I want to enhance my spam filter. I am using SPF and greylisting after each other and my idea would be to use only ...
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1answer
21 views

Precedence/co-existence of SPF and DKIM

Is co-existence of SPF and DKIM specified somewhere (assuming the absence of DMARC)? I want to put only my own IPs in the SPF and let 3rd parties send mail on behalf of my domain using DKIM. What ...
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1answer
54 views

What to look for when using a 3rd party Email Enrichment Service - to secure our emails? [closed]

Our marketing team wants to use a 3rd party Email Enrichment Service. I want to try and tackle this, as I don't like the idea that my mail will go through a certified service and exposed. I know ...
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1answer
1k views

Assistance diagnosing SenderID PermError in Exchange 2010

We're having issues with a customer's domain. They're wanting to do a mail-out with a service called Act-On, and so far all the tests seem to be getting flagged as spam. The customer has tried ...
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1answer
250 views

Mail marked as spam with SPF record allowing server's ipv4 but not ipv6

This question is mostly out of curiosity as I have now updated the SPF record to include the ipv6 address. I have a server and I tested its php email sending ability by sending myself an email from ...
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3answers
336 views

Mail from Rackspace virtual host using Google Apps goes to spam

We use Rackspace cloud servers for our applications. Specifically we are running Ubuntu 11.10 and our apps run on a virtual host. We get complaints frequently that our emails (using PHP mail) go ...
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1answer
83 views

SPF, Sender ID and DKIM signing - Does Sender ID need to be configured if DKIM signing in place?

While learning about SPF, Sender ID and DKIM siging, it seems that Sender ID and DKIM exist to solve similar problems. In addition, Sender ID is discussed in a fairly unflattering light on several of ...
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2answers
839 views

Outgoing mail through isp's smtp server is not getting delivered

What's the problem with the following emails? 1- Diagnostic information for administrators: Generating server: mailrelay002.isp.belgacom.be secretariat@lagereschoolbissegem.be [195.47.247.194] ...
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2answers
105 views

Spam originating from my account, SPF records did nothing?

Recently I have been receiving emails that apparently originate from my account about Russian hackers, I've set up an SPF record to try and stop this but it has made no difference and I have updated ...
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2answers
135 views

DNS Record for Sending Mail Server

Have 3 servers - web server, mail server and outbound-only email server. The outbound-only email server sends transaction based emails on behalf of the web server (password reset, contact us, etc.) ...
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1answer
3k views

Gmail is blocking email from my application server

I'm getting the following in my mail logs on my app server: 550-5.7.1 [67.23.15.78] The IP you're using to send mail is not authorized to 550-5.7.1 send email directly to our servers. Please use ...
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2answers
1k views

SPF Failure sending sms message to sms.mycricket.com

I built an asp.net application that sends text messages to our employees using carrier-provided email to SMS gateways. The people on Cricket (sms.mycricket.com) are the only ones that are bouncing ...
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2answers
92 views

Email forwarding via spf record

I have old-domain.co.il with several emails and a new-domain.co.il with the same email addresses. I don't want to connect my domain to a server via mx to make that transfer via email server. Is it ...
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1answer
479 views

Is it safe to use ptr in SPF?

Suppose you have the domain yourdomain.com, and you have set the following SPF: v=spf1 +ptr:yourdomain.com ~all Now, I have the IP address 1.2.3.4, and I am also the administrator of ...
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1answer
400 views

Multiple SPF include mechanism cause permerror

I'm currently using 2 providers to send e-Mails and one host which directly sends e-Mails. Personal mails are sent via Google and application generated via a bulk e-mail provider. Both are sent from ...
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1answer
439 views

Is there any way to add SRS support to cPanel to fix forwarders and SPF records?

According to OpenSPF, SPF "breaks" email forwarding. SRS is a way to fix it. This is true on one of the cPanel/WHM servers I manage. A customer has a forwarder set up and she is complaining that ...