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.

learn more… | top users | synonyms

5
votes
3answers
7k views

How to format and where to put the SPF TXT record?

EDIT I think I more or less understand the syntax and, anyway, Google is giving, in the link below, the syntax needed. My question is really where to put that stuff. Should I quote every field? The ...
3
votes
3answers
2k views

13 IP addresses, how to add them to domain SPF?

Let say I have these IP addresses on my server: 170.120.210.209 gateway 170.120.210.210 server IP 170.120.210.211 170.120.210.212 170.120.210.213 170.120.210.214 170.120.210.215 170.120.210.216 ...
5
votes
6answers
7k views

Emails going to Junk for Hotmail recipients

We send daily mass emails to our customers (~30,000+ emails per day). We have problems with Hotmail users receiving our emails. Sometimes the email goes to the Junk folder, but often it will got to ...
0
votes
1answer
330 views

Failed reverse DNS and SPF only when using Thunderbird!

I have a reverse DNS and SPF records correctly setup for my mail server. Sending webmail from it works perfect. The problem is when Thunderbird sends out emails, it is using the client's IP address ...
0
votes
2answers
604 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) ...
2
votes
2answers
219 views

How important is sender validation, and what matters?

When I started learning how to configure email, SPF existed but there were doubts about whether it was a good thing, and the value of offering SPF records in DNS. Now it seems that it is widely ...
1
vote
3answers
1k views

SPF include: too many IP addresses

I've hit a snag with SPF. The SPF record for my domain will contain four or five entries, plus it will contain: include:sgizmo.com The SPF record for sgizmo.com contains eleven entries! This, plus ...
2
votes
2answers
532 views

SPF records - what are the differences? [duplicate]

I'm trying to set up an SPF record for my domain. I've read the RFC, been to Wikipedia, openspf.org, etc. but I'm still confused. What is the difference between 'a' and 'mx'? When do I use 'mx: ...
0
votes
2answers
1k views

Configure a SPF rule on Ubuntu

Where I can create/insert the SPF rules to allow a external server to authenticate and send e-mails using the domain name of my server running Ubuntu? I need to insert this rule: v=spf1 ...
3
votes
5answers
707 views

SAN typical MTBF

We're using a SAN on a project at work, and there's a bit of debate around the fact that's technically it's a Single Point of Failure. No one seems to have any hard data. The SAN in question is a ...
2
votes
1answer
2k views

DNS zone file SPF configuration to support sending mail from multiple servers and gmail

I want to configure SPF on a domain to allow mail to be sent from: the x.com website server (x.com and www.x.com - both at same IP) its MX servers (smtp.x.com, mx.x.com, mail.x.com) another server ...
6
votes
2answers
453 views

What are DNS TXT records and why are they needed

I am creating a server with a primary nameserver and mutliple domains. Do i need to make TXT records for all the domain, they all have there own email, but use the mailserver from the primary. EDIT: ...
3
votes
5answers
2k views

Google Apps e-mail being rejected from some domains

I'm migrating e-mail for my domains to Google Apps' e-mail. Most everything seems to work except e-mail sent to any user at (at least) sonic.net is rejected with a message of the form (where ...
3
votes
2answers
997 views

SPF Setup - Sending from VPS and Google Apps

In follow up to my question here, how on earth do I setup a SPF record?!? I understand that I have to add a TXT record to my DNS entries but what to put in that TXT entry is what's confusing me... I ...
2
votes
2answers
299 views

E-mail duplication problem

I have taken out a hosting agreement with a well respected hosting provider for a couple of internet facing servers. We have deployed several applications to these servers which send various e-mails ...
4
votes
2answers
155 views

Email Server Validation Website

When sending emails I want my server to have DomainKeys and SPF records setup records correctly, is there a website I can email that does validation of my DomainKeys and SPF records?
2
votes
1answer
349 views

Is a soft SPF fail bad?

Received-SPF: softfail (google.com: domain of transitioning user@domain.com does not designate XXX.XX.XXX.XXX as permitted sender) client-ip=XXX.XX.XXX.XXX; Authentication-Results: mx.google.com; ...
0
votes
1answer
3k views

Emails are going to spam

Hey guys, I am currently running exchange 2010, I have implemented SPF record, and tried to implement dkim/domain keys using domain sink, but it doesn't seem to work. The problem I am having is that ...
0
votes
2answers
2k views

Correct SPF Record Usage?

My txt entry for my domain is as follows: txt --> "v=spf1 a ip4:aspmx.googlemail.com ptr:aspmx.googlemail.com include:aspmx.googlemail.com -all" I have also tried to use 'ptr' in addition to 'a', ...
2
votes
2answers
264 views

What are SPF records and how are they related to emails?

I changed the hosting of a website and their email is hosted with another company. There is also an SPF record for that host. What is the function of that SPF record?
0
votes
2answers
75 views

Help with SPF and Wacky Setup

I am the new system administrator for a company who recently rebranded one of its products. We seem to be having some trouble with our messages being marked as SPAM and from the research I have done, ...
2
votes
2answers
372 views

SMTP server on Win2008, SPF ecc

I want be able to send outgoing email from my website. I want to setup Win2008 smtp to be able to send them respecting all the spam rules. My checklist is: the smtp should be able to accept ...
0
votes
1answer
941 views

ClueBringer (PolicyD) user manual [closed]

Is there some user manual for ClueBringer (PolicyD) where I can learn how to setup policies, limitations and use other features. Webui looks intuitive, but policies I setup does not work. So, any kind ...
1
vote
1answer
226 views

How can I improve my domain's DNS record?

What DNS information can I add or change to improve the DNS record for my domain name (tjrobinson.net)? I use it to host a basic website and for my email. ZoneEdit host my DNS records. Ideas so far ...
4
votes
2answers
588 views

What's the difference between mx: and include: in SPF records?

I'm very new to all things DNS, yet I am trying to set up some SPF records. So far the SPF Setup Wizard has been immensely helpful, and I think I have things pretty much set; however I'd really like ...
10
votes
3answers
6k views

How to setup a SPF record to help fight SPAM

My little developer mind never really managed to understand how to do it, so maybe you can help me. I'm using Google Apps for Domains and MyDomain as DNS external service. Edit: Tough crowd, in ...
0
votes
1answer
1k views

Qmail & SPF - deciphering the log files

Can someone help me decipher whats going on in these log files? I've added my own comments there, but as I'm not experienced mail admin I could do with an experienced eye ;) The bit which gets me is ...
0
votes
1answer
153 views

setting postfix internal SPF for incoming mails

I have setup a postfix mail server. I tried to setup SPF for incoming mail messages as mentioned here 'http://www.freesoftwaremagazine.com/articles/focus%5Fspam%5Fpostfix?page=0%2C1' but i am unable ...
1
vote
3answers
588 views

What is wrong with this SPF records?

I send emails on behalf of customer1.net from mailer.mycompany.com. We also manage bouncebacks by setting the return-path on the envelope to setting it to bouncemgmt.mycompany.coom which in this case ...
2
votes
2answers
705 views

Using multiple servers to send mails for single domain

I'd like to use multiple servers for sending mails like so: server A: news@domain.com server B: all other addresses for domain.com. The most important thing is the ability to send mails from server ...
1
vote
5answers
8k views

How to set up spf records to send mail from google hosted apps to gmail addresses

I'm trying to work out why email I send from one domain I own is rejected by another that I own, and while I think it may be related to how I've setup spf records, I'm not sure what steps I need to ...
1
vote
3answers
542 views

In SPF how do you authorize any server on my domains to send

I have multiple domains with multiple mailservers on each. they all send with the same return path address. so x@bounce.bouncesent.com for instance. I want to authorize any host on my domains ( ...
0
votes
2answers
2k views

How to make a proper SPF record(s) for a complex setup?

I have a setup with several mailing domains and one domain for the return-path and sender So the mail header looks like: Received: from x1.mailer1.com ( can be x1.mailer2.com, x1.mailer3.com, ...
1
vote
1answer
230 views

SPF for various servers

Somewhat related to: http://serverfault.com/questions/4354/how-do-i-configure-spf-for-multiple-domains-on-a-server-also-allowing-gmail-as I have a MX record for my primary domain (j.com) that is my ...
20
votes
4answers
3k views

Best Practices for preventing you from looking like a spammer [duplicate]

I'd like to feel more confident setting up mail for my clients with regards to false positives. Here's what I know: SPF records are good, but not every spam filter service/software (SFSS) uses ...
16
votes
4answers
14k views

Will adding a second SPF record mess up my DNS?

Will adding a second SPF record mess up my DNS, or will it be like adding an extra nameserver? (i.e. it only helps, not hurts)
2
votes
1answer
2k views

How do I configure MailEnable on Win 2k3 to allow Google to relay SMTP through it?

We use "Google Apps for Your Domain" for email, but wish to use our old email server for sending mail. The reason being that Google Apps SMTP is blacklisted by several of our partners as being ...
8
votes
5answers
12k views

How do I configure SPF for multiple domains on a server? (also allowing gmail as a sender)

SPF (Sender Policy Framework) seems like a good way to combat spammers/spoofing. However, despite reading the explanations several times, I'm not quite understanding how to configure it correctly. ...