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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2
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2answers
70 views

Office365 SPF PermError: Too many DNS lookups

We are migrating from a self hosted mailing platform to Office365 for Businesses. Everything went fine, except for the SPF record. At the moment, we have v=spf1 a mx include:spf.mtasv.net -all as TXT ...
-2
votes
2answers
29 views

AWS SES TXT Record Content

I need to get AWS SES setup for a domain. The registrar's DNS tool only allows me to put in a block of text for the TXT/SPF records (one block per record). I'm not sure how to format the TXT record as ...
1
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1answer
39 views

550-Verification failed when forwarding email to some servers

I have a Postfix installed and working with SPF check and SRS-rewriting. When it forwards email for an external address, sometimes its smtp denies relaying the mail with the message: Relay access ...
0
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0answers
18 views

How to add domain to this existing SPF entry, which has multiple IPs and Domains [duplicate]

I have an existing SPF record in my DNS setup with something like the following: v=spf1 ip4:202.100.100.100 ip4:103.100.100.100 a a:test.com a:mail.test.com a:testy.co.nz a:mail.testy.co.nz mx ptr ...
-1
votes
1answer
27 views

Why does Microsoft's own Sender ID wizard generate a SPF record instead? [closed]

I'm trying to create a Sender ID record for TurboLab.it with Microsoft's own Sender ID wizard but the wizard always return something like v=spf1 a mx ptr ip4:95.141.32.205 -all: this looks like SPF, ...
0
votes
1answer
26 views

How to resolve problems with spf / softfail?

I'm having problems with Google rejecting mail because of SPF problems. I thought I had this fixed, but evidently not... The mail is being sent from a Drupal site running mimemail. A message that ...
1
vote
1answer
48 views

Spf passes or fails depending on receiver address

I have postfix with dovecot set up on Ubuntu 13.10. I send emails via a node application (using email-templates). If I send an email from noreply@mydomain.com to myacccount@gmail.com (email 1), the ...
1
vote
1answer
38 views

Multiple SPF records for multiple domains [duplicate]

We have recently started using Office 365 for our email, which requires us to add a DNS TXT record with the value v=spf1 include:spf.protection.outlook.com -all. We already have an SPF record with the ...
1
vote
2answers
67 views

Is the 10-DNS-lookup limit in the SPF spec typically enforced?

My understanding is that the SPF spec specifies an email receiver shouldn't have to do more than 10 DNS lookups in order to gather all the allowed IPs for a sender. So if an SPF record has ...
-4
votes
0answers
45 views

Email still going to SPAM folder after SPF and DKIM enabled [duplicate]

I'm having some trouble figuring out why my e-mails are being sent to the spam folder in almost all servers. Here I post the message received to one of my hotmail accounts (sensitive information ...
0
votes
0answers
19 views

Changes required to SPF record [duplicate]

Our email is delivered to an IMAP account on an external server. We have the option of relaying mail through this server (which we sometimes do) but usually send directly using Microsoft Exchange ...
0
votes
0answers
37 views

SPF record validation is pass but email is rejected by server [duplicate]

I have SMTP on a windows 2008 server with IIS6. The SPF recored is passed when I send emails to hotmail or gmail but it gets rejected on other servers claiming that there is problems with the SPF. ...
0
votes
0answers
23 views

Spam - openrelays using our email addresses

Folks, I'm getting into trouble with spam filters on the internet. Our own email addresses are being used by spammers and replies are being sent back to us with notification about addition to ...
6
votes
2answers
245 views

Why is email being delivered normally despite an SPF “hardfail”?

I'm trying to figure out why forged email is being delivered to major email providers (gmail.com, outlook.com) even though email is marked with an SPF hardfail. The email is also delivered to ...
2
votes
1answer
38 views

DKIM and SPF for a subdomain

I manage a VPS on Linode accessed through subdomain.domain.com and I need to send email from this subdomain. I can't set any TXT records in Linode DNS manager because the name servers for domain.com ...
-2
votes
2answers
44 views

How to properly set TXT SPF record when separating A from MX records [duplicate]

I have current TXT record for my domain: v=spf1 a mx ip4:{ip-of-my-server} -all Both email traffic and website goes to same machine. Now, I have to point website (A record) to other server. Will ...
0
votes
1answer
17 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 ...
1
vote
1answer
25 views

spf and dkim records in the same dns zone file

I am trying to set up a mail server which will sign outgoing messages with a dkim signature. Part of that process is to set up a dns record for my senders domain with the public key of the key used ...
1
vote
2answers
57 views

SPF/DKIM Configuration for usage with critsend

I am currently facing the following issue: I have configured a domain of mine to be used with the Critsend mailing service. Their recommended configuration for both SPF and DKIM was implemented on ...
0
votes
2answers
46 views

Email flagget as spam or rejected by recipient mail server

I have configured smtp service on a windows 2008 server. All the emails sent by the smtp service are flagged as spam or they are rejected by the recipient of the email. In the header of the email I ...
-1
votes
2answers
39 views

server's email going to spam for yahoo users, possible SPF issue? [duplicate]

Our website is sending out email verifications to members who sign up with our service. Yahoo is throwing our messages in the spam box and displaying this message in the headers: Received-SPF: none ...
1
vote
3answers
73 views

SPF TXT record with multiple senders - bounce back - spf check failed

My company uses office 365 for our email, but we also send email from one of our server's IP addresses. My TXT record is: v=spf1 ip4:XXX.XX.XX.XXX include:spf.protection.outlook.com -all ...
0
votes
1answer
37 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 ...
0
votes
1answer
14 views

Google gmail block for no ptr of 4to6 ip address

When mail server got only ipv4 address and enabled 4to6 interface, gmail server block mail because of no ptr record of 4to6 address. Why...? Isn't 4to6 address not global standard...?
0
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0answers
53 views

Postfix Rackspace setup with SPF record always go to SPAM (neutral)

after a lot of fighting with the system I would like to know your guys opinion and solution. Idea is to have 1 mail server (centos postfix) at rackspace and have all the other cloud servers relay to ...
0
votes
0answers
56 views

SPF Check Failing Because Yahoo and Hotmail Looking for Zone File For Hostname

I have set up an SPF record that passes gmail's SPF record check, but not hotmail, yahoo, port25.com, isnotspam.com, or openspf.net. I believe the SPF record is properly set up for my domain, ...
2
votes
2answers
63 views

include:_spf.google.com not enough for hotmail

My spf is neland.dk descriptive text "v=spf1 a:mail6.paradiss.dk a:min.moar.dk a:arnold.neland.dk include:_spf.google.com -all" I get this error when sending from gmail.com as leif@neland.dk ...
4
votes
1answer
128 views

Is it OK to have multiple TXT records for a single domain containing different SPF entries?

A remote recipient domain is rejecting mail on the grounds of SPF and I think it's because the sender has SPF configured incorrectly. When I run dig, I see: [fooadm@box ~]# dig @8.8.8.8 -t TXT ...
1
vote
1answer
50 views

gmail contacts IP from SPF and fails to send mail to some domains

I have strange problem with my SPF records and gmail MX. I have this SPF setup v=spf1 a mx ip4:IP1 ip4:IP2 include:_spf.google.com ~all In this case, if I send an email to two specific domains, ...
1
vote
2answers
39 views

Is there any difference between different ways of expressing the same information in an SPF record?

I have a domain at example.com. The MX record is 10 cp.example.net. These domains are on two different IP addresses. Let's say that example.com is on 198.51.100.0, while example.net and cp.example.net ...
0
votes
1answer
61 views

DNS Redirect Website to another Server

I have two servers, server 1 and server2. The name serververs of the domain points to server1. 1.I have this configuration regarding Server1 DNS Zones: domain.com. 1200 IN A server2-ip Edit ...
0
votes
1answer
40 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 ...
-1
votes
1answer
46 views

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 ...
0
votes
1answer
177 views

Configuring SPF, DKIM, Reverse DNS for VPS sending email through Google Apps SMTP servers

Today we realized that all of our emails being sent to email addresses of the type <username>@corporatedomain.com were getting rejected. I don't know who is hosting the email for ...
5
votes
1answer
471 views

Office365 SPF record has too many lookups

For some utterly ridiculous administrative reasons we've got a split domain with one mailbox on Office365 which requires us to add include:outlook.com to our SPF record. The problem with this is that ...
0
votes
1answer
77 views

Icinga notifications are being marked as spam when sent to my mailbox

I'm using gmail and my domain is foo.com About half the notifications from my icinga server, icinga@foo.com go to my spam folder for me@gmail.com Received-SPF: fail (google.com: domain of ...
1
vote
1answer
260 views

TinyDNS and proper settings for SPF records

I've inherited a TinyDNS configuration that have following entries for SPF: @domain.com:x.x.x.3:a::86400 @domain.com:x.x.x.103:c:10:86400 =domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.3:86400 ...
1
vote
1answer
181 views

Failure notice with my mail server, what to do?

I've build a simple Mail server for my personal use, but Google reject my emails whatever I do. I worked hard finding the initials problems (wrong SPF entries in the DNS), but now, everything seems ...
6
votes
4answers
685 views

Why does my mail get marked as spam?

I Have the server "afspraakmanager.be". It matches everything not to be a spam server.(it isn't by the way): it has reverse dns, spf,dkim,... . But hotmail marks it as spam. I think the problem is ...
0
votes
1answer
176 views

SPF + ISP Smarthost, always untrusted?

One of the ways mail-servers protect themselves from spam is by SPF-records, a DNS look-up saying what ip-adresses are allowed to send mail from a given domain name. Another way the mail-servers use ...
2
votes
1answer
77 views

Is Sender Policy Framework (SPF) effective in preventing Phishing emails?

As defined in RFC4408, Sender Policy Framework only checks the envelope sender (aka MAIL FROM). The From: header is not being tested. As it is the value of the From: header which is usually displayed ...
2
votes
1answer
83 views

SPF record validation - best guess only

I administrate the domain [mydomain.com] which was until now only used for handling mail through Google Mail/Google Apps. Now I added a server which should be part of the domain without changing the ...
0
votes
1answer
58 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, ...
2
votes
1answer
116 views

Using “mx ptr” parameters in DNS SPF record

I'm trying to set up my SPF record to validate properly both for emails sent through Google Apps and for those sent from MailChimp's servers. MailChimp's docs recommend this SPF record: v=spf1 mx ptr ...
0
votes
1answer
86 views

What will be the SPF entry in DNS?

We are using magento on our server. Magento sent transactional emails directly from our server using php mail function, along with this we are using third party webmail service. Means our mx entry ...
0
votes
0answers
321 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 ...
0
votes
2answers
626 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 ...
4
votes
3answers
2k views

Why is my email failing Gmail's DKIM test?

I have a message that was rejected by Gmail, I don't know why. It passes SPF. We aren't using DKIM. Do I need to set up DKIM? I am in control of "example.com". Our mail server is "server.example.com" ...
0
votes
2answers
205 views

How to setup spf1 record Using Cloudflare, outlook.com and sending mail directly from php server?

I have a web server with a community website on it, and 1 subdomain on another ip. I use Cloudflare, and made outlook.com handle my mail for me. However my web server also sends mail. For example, a ...
0
votes
1answer
42 views

SPF record configuration [duplicate]

I am a bit confused about the creation of SPF records. I have my hosting domain: hosting.mydomain.com, this is the hostname of the actual server running postfix etc. I have configured my DNS like ...