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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14 views

Compound SPF record syntax

We send transactional email from our own server and use Google Apps for email. We have the transactional server SPF set up: v=spf1 ip4:37.xxx.xx.xxx ip6:2xxx:4xd0:a:1f39::1 a mx ~all but need to ...
0
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0answers
19 views

Difficulty with second domain in an SPF Record (not allowed use email addy)

I'm kinda out of my element here so please forgive me. I have read and googled several spf post and troubleshooting tips but I can't quite figure out what I'm missing. My test email is failing ...
0
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0answers
12 views

What is the best way to harden a postfix null client on an exploited php webserver?

We use postfix as a null client to send out mail from a php webserver via sendmail. We host our incoming mail servers elsewhere and use a SPF record to authorise the server to send emails from our ...
1
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0answers
35 views

New Exchanger Server installation - Email marked as spam on hotmail/outlook

New to the email hosting scene - running an Exchange 2013 box. Email is always (literally, always) marked as spam when sending out to my outlook.com account. Whereas if its sent to an email address ...
0
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0answers
24 views

E-mails from our domains go to spam despite fixes [duplicate]

EDIT: I have started doing tests to see if the problem is the content of the e-mails and not the authentication headers. Our team has bought a VPS which at the moment hosts several websites. Most of ...
0
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0answers
15 views

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) ...
1
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0answers
26 views

SPF record not being detected by gmail

I recently added SPF record to my server & it passes all the results required. However sending email doesn't detect SPF record. The method I use to detect is whether gmail shows 'mailed-by'. I ...
1
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0answers
58 views

Mail marked as spam (Gmail/Hotmail): IP not on blacklist, DKIM Valid, SPF Valid and DMARC valid

I'm trying to send mail from my own domain (which is 15 days old now) but I'm having some troubles. Check the following mail body: Delivered-To: ------@gmail.com Received: by 10.25.89.200 with SMTP ...
2
votes
2answers
43 views

Postfix header stating wrong IP

I am using Postfix 2.11.3 on Debian 8.0 I configured Postfix to run multiple instances (3), one for each public IP connected to our server in order to balance outgoing traffic depending on the ...
1
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1answer
27 views

SPF record for MX records?

I am maintaining the DNS records of a domain which was set up by someone else. I have following RRs (visible in an webinterface): example.com A 1.2.3.4 example.com MX 10:mail.example.com example.com ...
1
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0answers
36 views

SFP + Gmail = Emails delivered to spam box

A long time ago I posted a question here: Postfix: Gmail marking my email as spam where I said that although emails send from my servers were passing all the DKIM and SPF tests they were getting ...
0
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1answer
41 views

Using PTR on SPF Record and Multiple Domain Pointing Single Server

Today I've checked my SPF is valid on some of the sites and invalid on some of the sites I've tested. Microsoft also couldn't see my SPF record for some reason while others can. (Sender ID ...
0
votes
2answers
89 views

SPF check failure but cannot pinpoint issue (newbie)

I sent a test email using the port25.com email verification tool and got back the results below in it's entirety. Can someone tell me what is missing and why SPF is failing? Many thanks! -sul. This ...
1
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0answers
111 views

SMTP error : Remote host said: 550 5.7.1 At least one FROM header address not allowed to send mail from IP ADDRESS

We are developing an email sending app, and we allow our users to specify the From: header their emails will be sent from. Let's say our domain is mydomain.com and our client domain is ...
0
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2answers
116 views

Spam delivered by mx.google.com despite SPF fail

Some spammer use our e-mail address as sender in forged e-mails. Now we got thousands of bounced messages from no longes existing e-mails. We set up SPF and DKIM records but it does not stop. ...
1
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0answers
25 views

How to troubleshoot marketing e-mail inbox rate / deliverability? [duplicate]

After previously using managed ESP's, we've recently switched over to our own server (CentOS 6) that's set up to send bulk e-mails with 12 IPs/SPF/DKIM. Campaigns are processed and sent via ...
2
votes
1answer
43 views

SPF records clarification of using A mechanism

What is the difference between using v=spf1 a ~all and v=spf1 ip4:IP_OF_A_RECORD ~all or v=spf1 IP_OF_A_RECORD ~all when configuring SPF records? Which way is correct and more robust and reliable?
1
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1answer
40 views

Originating (non-critical) emails from a “less-trusted” host

Background We have a webapp running on webapp.example.com that (amongst other things) sends messages by email from time to time. These messages are non-critical: whilst we would like to make a best ...
2
votes
0answers
90 views

SPF check based on client IP instead of MTA IP?

Setup On a client computer with IP address a.a.a.a, there is a mail client that uses SMTP to send emails via company email server example.com with IP address b.b.b.b. The company email server ...
4
votes
2answers
357 views

Route 53 - Should I duplicate my SPF records as TXT records?

Amazon Route 53 supports both "SPF Records" and "TXT Records". Most documentation I read tells me to list my SPF Record as a TXT Record. I understand that the SPF Record is a newer standard. Is it ...
0
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1answer
34 views

Proper Setup of SPF Record

OK, so, i'm only so familiar with how the SPF system works, and my domain is being used to send all kinds of spam. Here is my current spf record: v=spf1 ip4:web.host.ip ip4:108.60.203.190 +a +mx ...
0
votes
1answer
83 views

Gmail ignoring SPF record

I have a domain whose SPF record looks like this: "v=spf1 mx ip4:6.7.8.9 -all". The record is valid, and to my understanding implies that allow mails only from: The server that is MX record for the ...
-1
votes
2answers
48 views

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 ...
7
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3answers
120 views

Does “~all” in the middle of an SPF record signal the end of the record when it is parsed?

Our company's SPF record format is as follows: "v=spf1 include:_spf.google.com ~all a mx ip4:X.X.0.0/23 include:spf.example.com ?all" So we have an "~all" in the middle of our SPF record. On the ...
1
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1answer
70 views

Conflict between wildcard DNS entry and SPF

I have a domain set up on Amazon's Route53, and it seems the following entries are not going to work (actual values replaced, obviously). Can anyone advise on how this should be set up? This is the ...
1
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1answer
90 views

How should my SPF record be set up, or is it even necessary?

I have a domain (fiestyturtles.com) registered at namecheap.com, and hosted at a shared webhost (hostpc.com). But I've moved the email handling of my domain to google apps, I think I set this up by ...
0
votes
0answers
13 views

What is the correct SPF setting if I want a specific IP, hosting provider's MX, and GMail to work for sending emails coming from my domain? [duplicate]

I have never set up an SPF record, so I am trying to make sure I understand what I am doing before causing all sorts of havoc. Let's say I have a domain example.org which is being hosted by ...
5
votes
3answers
650 views

Have a valid SPF record but still can spoof my email

I have set up an SPF record for my domain, but I still can spoof email-addresses for my domain using fake email services like this one: http://deadfake.com/Send.aspx The email does arrive to my gmail ...
-2
votes
1answer
47 views

Adding SPF record for second domain, but I don't yet have an SPF record for Gmail [duplicate]

I am familiar with the basics of SPF but I am having trouble determining exactly what I need for my setup. I have my email done through Google Apps to send and receive email for my domain, ...
2
votes
2answers
364 views

DNS and SPF configuration for Microsoft Exchange

We've started receiving spam with spoofed addresses from our own domain. So I'm trying to get my PTR and SPF records etc correct to prevent it. We're running Exchange 2010 on site with one server ...
-2
votes
3answers
113 views

Is there any standard for DNS <-> IP authentication?

I'm looking to implement an authentication mechanism which allows to enforce access policies based on the domain name of the client. The authentication server uses the information available in the DNS ...
4
votes
1answer
331 views

What does MX in SPF mean? [duplicate]

I'm setting up an email server, and I'm a bit confused by SPF. Following some examples, I set my SPF record as follows... v=spf1 mx ip4:1.2.3.4 mx:mail.mydomain.com ptr:1.2.3.4 -all I follow what ...
3
votes
1answer
139 views

Why am I getting these emails?

Awhile ago I noticed that email messages from my domain is not immediately delivers by google, and I'm getting an smtp error message from google server. I don not remember the exact wording of that ...
0
votes
2answers
102 views

I am able to receive mails but unable to send via my SMTP server?

I have a shared hosting server from hostgator, in which I created an email 'support@mydomain.com'. Then I enabled both DKIM and SPF (as I read on a few threads that SPF should be enabled to ensure a ...
0
votes
1answer
101 views

Failed Gmail SPF check when importing mail through IMAP from our mailbox when original email was sent with ESMTP headers

We have a strange situation: we receive an email with ESMTP headers in it our server accepts it, it's fine we import that mail in Gmail like any other emails from our boxes Gmail makes SPF check ...
6
votes
2answers
322 views

Failed SPF for email imported to Gmail because of client IP instead of server's in message when sent through SMTP from one local box to another

We have a linux (Debian) VPS with domain (let's say example.com with MX mail.example.com) that has SPF set up. There is dovecot+exim running. There is also Direct Admin on top of that. When I send a ...
0
votes
1answer
132 views

SPF records when sending multi-domain emails from one host

We have a CMS system in which multiple customers run their websites from a single virtual machine. Pages generated by the CMS allow forms to be filled in, which trigger emails to be sent. I am having ...
3
votes
1answer
72 views

SPF record for my domain is not being detected

I have a domain (qplum.co) set up at NameCheap. I am trying to set a TXT record for setting up SPF for Mandrill but for some reason, this record is not being detected at all by any of the tools. This ...
0
votes
1answer
57 views

Can I use include and redirect in same SPF record?

My current SPF record is as below Host Value TTL myexampledomain.com "v=spf1 redirect=_spf.mailhostbox.com" 1 Day I am using 2 free email ...
1
vote
1answer
405 views

PermError SPF Permanent Error: Void lookup limit of 2 exceeded

I am trying to setup SPF on a server - mail works fine and validates according to mxtoolbox and other online checks but when I check it using http://www.kitterman.com/spf/validate.html I get an error: ...
0
votes
1answer
38 views

Dynamically set SRS_DOMAIN

I have a mailserver forwarding mail and using postsrsd for SRS. Since postsrsd uses postfix's mydomain setting to alter the Return-Path, is there a way to set the SRS_DOMAIN for forwarded mail based ...
-1
votes
1answer
38 views

spf record fail on forwarded mail

I've set up Postfix, Dovecot and MySQL according to this tutorial from linode. In the virtual aliases table I have an account which forwards to my gmail. Because these messages are then being ...
0
votes
2answers
66 views

One email address recognized as spam [duplicate]

Emails send from some of the addresses in one domain are marked as spam by multiple email clients. Since just few addresses within the domain are marked as spam, I do not think it is a domain problem, ...
0
votes
0answers
227 views

Configure SPF for gmail account

I am really new to this @ v=spf1 include:_spf.google.com ~all 1 Hour I have added the above spf setting for admin@studentclutter.com as it is a google apps email account However, I am getting ...
0
votes
1answer
39 views

What is the difference between -all and ~all in a DNS SPF record? [duplicate]

I've found that our current DNS SPF record uses the ~all keyword, but in most examples I've seen -all used. What's the difference between the two?
1
vote
1answer
76 views

google apps mail error

In recent months, we have big problems when we send email on our own mailing list (for safety, I'll call our domain name example.com) staff@toto.com. All users receive this kind of mail back from the ...
0
votes
1answer
94 views

SPF Softfail when Txt Record Exists

I am getting softfail for SPF and Sender-ID and I tested it by sending an email to check-auth@verifier.port25.com. My Set-up: 1 VPS hosting 1 website Postfix for Send only emails No incoming ...
0
votes
1answer
89 views

Gmail SPF misconfigured

The SPF entry for gmail.com is a redirect to _spf.google.com: $ dig gmail.com txt @8.8.8.8 +short "v=spf1 redirect=_spf.google.com" _spf.google.com is a redirect to 3 other entries $ dig ...
0
votes
2answers
52 views

Multiple SPF DNS Record entries

We are currently in the process of migrating our on-premise Exchange environment to the O365 cloud but in the meantime I need setup a SPF record for current outgoing email and for the O365 pilot ...
2
votes
2answers
288 views

Do I need to Set-up PTR record in SPF Setting?

I have set-up the RDNS from my hosting provider for the ip address to resolve to "maximus.example.com". After that, do I also need to add the PTR records to the SPF Text details in my DNS zone file as ...