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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EXIM4 sent mail sometimes rejected, always put in spam. DKIM and SPF pass + reverse DNS

Recently I've been seeing some instances of Your access to this mail system has been rejected due to the sending MTA's poor reputation. in my maillog and have noticed that my emails have been getting ...
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2answers
307 views

SPF Record with or without plus

Is there any difference between v=spf1 +a +mx -all and v=spf1 a mx -all I am unsure if they do the same thing or somthing different. Clarification would be great. Thank you
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1answer
807 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
106 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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1answer
599 views

How to correctly add SPF record

I need to add a SendGrid SPF record for my GoDaddy domain, but I'm not sure exactly where to put it. I have an existing TXT record for @ with value of ...
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2answers
143 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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2answers
8k views

How to avoid messages rejection because of DMARC when sent through Gmail alias?

Many people add ' another email address as alias ' for their Gmail accounts - talking here about public Gmail not Google Apps - and they may use Gmail server not their domain servers as SMTP with the ...
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1answer
260 views

Mail is marked as spam although SPF and DKIM pass

I have configured Postfix to send mail from a dedicated server hosted let's on IP X.X.X.X and domain name example.com. DKIM, SPF always pass when I send mail locally from that host but still ends up ...
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1answer
114 views

Set up spf and dkim, where email domain and sending domain differ

I have two domains: foo.com and bar.com Only foo.com is using Google Apps and thus can send emails. I now have a service running on bar.com\application that uses the email application@foo.com to ...
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1answer
1k views

How to correctly manage multiple virtual hosts with postfix?

I'm tring to correctly setup a postfix server for our products for a couple of days. The server is running correctly but some emails sended to gmail are delivered to spam box. The server is configured ...
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3answers
164 views

TXT record for a server behind a router?

I've found this wonderful explanation of SPF on http://www.openspf.org/SPF_Record_Syntax and i had it working on my older setup. Setup has changed and i find myself in the ropes again. I have an ...
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2answers
2k views

Mail rejected because of SPF lookup - can a MX record be a CNAME?

We're serving mail for a group of customers, and (only) one of them is seeing (some of) their mails rejected. The situation is: Our server: ourdomain.com -> Gets forward and reverse DNS lookup ...
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1answer
4k 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
765 views

SPF Records for subdomain sharing mail server

I have two websites hosted on the same server. I set up the second site after I had already set up the first site and its corresponding email server. This is more of a DNS question. The first ...
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3answers
1k views

CNAME domain to another domain, but keep different SPF records for the two?

SCENARIO: mydomain.com is the main website, we do send/receive mail using address@mydomain.com. mydomain.com DNS has got an SPF record "v=spf1 a mx ~all" mydomain.net is just an alias for ...
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1answer
279 views

Configure Exchange to receive email from an internal address with an external IP address

Our company provides email marketing services. Our service is hosted and emails are deployed from our IP addresses. Clients use their email address(es) as the "from" address, and typically, as long as ...
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2answers
4k 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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3answers
298 views

DNS and Namerservers query

I have a VPS hosted with 1&1 which also provides mailboxes that we use for day to day e-mailing. Our domain is registered with 123reg and the name servers point to 1&1 . To email our 10k+ ...
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1answer
131 views

Checking SPF for outgoing mails

Is there any particular reason why I should not perform SPF checks for outgoing mails? I was reading on some articles that "you should not perform SPF checks for outgoing mails", why? I'm doing SPF ...
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1answer
294 views

Received-SPF: unknown domain of _netblocks2.google.com uses a mechanism not recognized by this client

We've configured SPF for our Google Apps For Your Domain domain some time ago, and resources like mail-tester.com validate it as setup correctly (we also have DKIM, etc). For the past year however, ...
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2answers
6k views

What does this mean: v=spf1 include:_spf.google.com ~all?

In addition to my previous question, what does this DNS entry mean: v=spf1 include:_spf.google.com ~all ?
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1answer
1k views

How to resolve SPF configuration to allow Google sending mails?

we are configuring DNS for a GMail service, the MX records are configured as to Google says, however, in the DNS check, there is a warning: SPF must allow Google to send mail on behalf of the domain ...
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0answers
77 views

SRS + SPF for Exchange Server

Is there a specific way to enable SRS on Exchange, or a similar function, on a SPF enabled domain? I have a SPF Record set to ~all, and noticed that out of office (OOO) emails are failing due to them ...
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1answer
263 views

Error while sending email using our own server: Sender is probably forged (SPF Softfail)

I have an email account from our own server and I can't send any emails and I'd appreciate any help with fixing it. This is the error I'm getting: Sender is probably forged (SPF Softfail) Our mail ...
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1answer
60 views

An SPF setup example

To set up SPF for an OpenEMM server (emm.example.com.sg) for the site: domain: example.com.sg web server: www.example.com.sg EMM server: emm.example.com.sg (say, ip: 201.202.203.204) The ...
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1answer
222 views

Is my SPF record not valid?

I have a problem with one of the email services. It rejects emails from my server. I contacted them and they answered that they check SPF records and I am sending emails from not authorised server. ...
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3answers
702 views

Wildcard configured emails allow spammers to deliver mail? (SPF: “softfail”)

I have a Google Apps account set up for one of my domains. Wildcard email delivery is enabled on this domain for all emails (ie. anything@domain.com passes emails along to myemail@domain.com), and the ...
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2answers
121 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 ...
6
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2answers
5k views

Remove “via” from emails sent to Gmail from Amazon SES

When sending emails from Amazon SES, gmail shows "sent via amazonses.com". How do I remove this? According to Google, I'm a sender and I don't want my recipients to see the "via" link. What can I ...
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1answer
123 views

SPF: How are user@domain.com records verified?

I'm troubleshooting Google Apps marking valid messages as spam. In the message header: Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of ...
2
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1answer
126 views

Is this SPF record valid?

I just want to confirm if my SPF record is valid : v=spf1 ip4:66.46.182.1/24 ip4:206.132.164.176/24 ip4:23.21.63.174 -all Will 2 ip ranges and a specific ip on one line valid?? Thanks in advance.
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1answer
170 views

SPF records issue

I have an SPF record set up for my domain eg: v=spf1 a mx include:mydomain.co.uk ?all However, I now have to add an SPF record for a web based invoicing system which wants me to add the following ...
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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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1answer
290 views

Sending email from a Google Apps address

I have a website in a Linode VPS in Linode. The email address to receive emails is hosted in Google Apps, but I send emails from postfix. For that to work and not cause problems with spam folders, I ...
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2answers
435 views

How to force postfix to use ip that is configured for domain?

I want to confirm to SPF and DKIM, this requires me to send email using the IP written in the DNS record of the domain I have two domains example1.com and example2.com with two IPs 100.0.0.1 and ...
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2answers
93 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
103 views

SPF record to block other Google Apps accounts

We are having problems with people sending emails from @.com via Google Apps and are looking for a way to block this. Our spf-records allow Googles servers to send mail from our domain as this is how ...
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2answers
144 views

Multiple A records in SPF a: field

I have a bunch of domains widespread over various DNS providers today, and all of them looks like this: @ TXT "v=spf1 a:spf.example.com -all" Which is good for now. However, I want to add a ...
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1answer
56 views

SPF record for sending emails

The website is under our server with the domain: xxxx.org.il the client email is xxxx@yyyyyy.co.il the email they get is from a third party the email we sent from the website are trough one of the ...
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1answer
862 views

Sending email from an AWS domain via Google Apps

I have a domain managed via Amazon's Route53 service. I have a Google Apps (free) account with 10 full users. To facilitate more than 10 users (we need about 12-14), I've been using a setup whereby ...
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1answer
508 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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2answers
983 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 ...
2
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1answer
204 views

SFP Validation: Neutral - after explicitly adding servers to TXT (and SPF) record

I can't get a pass on the emails coming from my application servers :( - I have 2 I am using http://tools.bevhost.com/spf/ to validate my newly minted SPF records. It has the following to say: pass ...
2
votes
2answers
239 views

SPF record for Gmail?

I have DNS, with a SPF TXT record, configured for a domain name. The primary user of the domain name now needs to be able to send both from our SMTP servers, and also from her GMail account. I've seen ...
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1answer
4k views

Setting an SPF/DKIM record with CloudFlare

What is the correct way to setup an SPF record? Use TXT and add the following? v=spf1 a mx include:mydomain.tld ~all UPDATED: After using the following: v=spf1 a mx ~all I get this: ...
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2answers
177 views

Is there a common X-Header for RFC 2821 “MAIL FROM”? Should it be DKIM signed?

w.r.t. the difference between RFC2821 MAIL From and RFC2822 FROM I'm considering having my MTA add a header specifying what was sent in the MAIL FROM portion of the envelope. The RFC2821 header is ...
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2answers
324 views

spf record setup

Emails sent by mta from my server recognizes by spam filters as spam and there's message : Received-SPF: neutral ... Actually, I am not spammer :) So, I googled around these questions and found that ...
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1answer
105 views

correct way to prevent SPF failures

I have a website on a hosted server whose mail users are using their ISPs SMTP to send mail. I have set their SPF record to look like this: v=spf1 mx a:comcast.net ip4:216.70.103.0/24 ...
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4answers
448 views

How do SPF records reduce spam?

How do SPF records reduce spam? Note: I'm not asking how to setup an SPF record; I already know how to do this. Does the receiving mail server lookup the SPF record and determine if where the mail is ...
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2answers
679 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 ...