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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1answer
118 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
123 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.
4
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1answer
157 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 ...
0
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2answers
983 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 ...
1
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1answer
268 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 ...
1
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2answers
424 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 ...
0
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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 ...
0
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1answer
157 views

Google Apps SPF Record in cPanel

I'm trying to correctly configure Google Apps SPF records for my domain using cPanel/WHM DNS. I've currently got it setup like this as a TXT record: Name: mydomain.com. TTL: 14400 Record: v=spf1 +a ...
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1answer
98 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
120 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
54 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 ...
1
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1answer
741 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 ...
0
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1answer
476 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 ...
0
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2answers
879 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
195 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
227 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 ...
1
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1answer
3k 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: ...
1
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2answers
166 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
312 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 ...
1
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1answer
99 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
419 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 ...
0
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2answers
647 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 ...
2
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1answer
128 views

Somebody has been sending spam from my domain. Other than setting SPF records, is there anything else I can do? [duplicate]

Possible Duplicate: Spam coming from domain, but from a user that I don’t have How to stop people from using my domain to send spam? For weeks I've been getting 10-20 delivery failure ...
0
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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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1answer
796 views

Received-SPF: softfail when sending to google

In the headers of an email it says: google.com: domain of transitioning @.nl does not designate *::*:**:: as permitted sender We need this mail to be spam-free. I know we have to add this IP(?) ...
0
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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 ...
5
votes
1answer
2k views

Amazon SES e-mails ending in Yahoo & Hotmail Spam folders, even though SPF and SenderID and DKIM are set correctly

This is incredibly frustrating. My Amazon SES e-mails are ending in Yahoo & Hotmail Spam folders, even though my SPF, SenderID, and DKIM are setup correctly. Since this particular site requires ...
0
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1answer
395 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 ...
45
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6answers
12k views

Fighting Spam - What can I do as an: Email Administrator, Domain Owner, or User?

This is a Canonical Question about Fighting Spam. Also related: How to stop people from using my domain to send spam? What are SPF records, and how do I configure them? There are ...
0
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1answer
144 views

spf issue postfix

Received-SPF: none (domain of deens1.chickenkiller.com does not designate permitted sender hosts) Received-SPF: pass (google.com: best guess record for domain of root@deens1.chickenkiller.com ...
4
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1answer
58 views

Can the dns' domain be in its own spf record?

I'm finally fixing up my dns zone files in Gandi, which has a handy feature that lets me use the same zone file for several domains. So I can keep 1 zone file for a single domain and all its tld's. ...
6
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2answers
1k views

What are the correct SPF records to allow both local and Google Apps delivery

We have recently moved our server stack to a new data farm, and some of our clients are experiencing issues with mail being sent from their GApps accounts. Before the server move we had no issues, but ...
3
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1answer
467 views

How did this email bypass my SPF settings?

I received a phishing email this morning that appeared to come from one of my addresses to itself. Looking at the headers, I found something interesting. DomainKey-Status: no signature ...
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2answers
238 views

How Can I Load Balance Outbound Email?

My server have four external IP address. I want to distribute to this IP addresses for sending emails. For example : 1.st mail sending XX.XX.XX.10 ip 2.nd mail sending XX.XX.XX.11 ip 3.rd mail ...
1
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2answers
1k views

All headers pass, hotmail still marks as spam [duplicate]

Possible Duplicate: Why Does hotmail still reject my emails? So I've been working a long time on fixing the Hotmail issue, but nothing seems to work: Created my SPF records with the ...
4
votes
1answer
888 views

Why is SPF being validated against my mail server's IP instead of sender's IP?

I have a mail server "example.com" which forwards all emails with recipient "me@example.com" to "me@gmail.com". My mail server runs Postfix and it uses the virtual_alias_maps mechanism to perform the ...
0
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3answers
566 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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1answer
175 views

Postfix; Why did this email not get blocked?

Consider the following junk email received in which the recipient address is the same as the sender's address, but this users didn't send them self the email, it is junk mail; (All hostnames and IPs ...
3
votes
1answer
125 views

What value does SenderID provide over SPF and DKIM?

I understand that SPF "binds" a message envelope to a set of permitted IP addresses. SenderID (with the default pra option) "binds" the message header to a set of permitted IPs in addition to the ...
2
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1answer
73 views

Understanding the many “FROM” addresses that apply to SenderID, DKIM, and SPF

Can someone tell me when and why a client, MTA relay, Unix .Forward, anonymous relay, or listserver will create, or alter these headers: Resent-Sender: Resent-From: Sender: From: If you can please ...
1
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1answer
980 views

SPF blocking some emails. How to complete disable it?

We have configured a SMTP server on IIS. We have not configured any SPF rule. Some emails are going straight to the badmail folder. Most of them have this error message: Address does not pass the ...
7
votes
2answers
2k views

GMail suspects confirmation email in stealing personal information

When user registers on my web site, web site sends user email confirmation link. Subject: Please confirm your email address Body:Please open this link in your browser to confirm your email address: ...
3
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2answers
99 views

Will this SPF record restrict delivery of email for the original domain?

As part of the product we offer we send emails on behalf of our clients. Because the emails don't come from an IP associated with the client they are sometimes flagged as spam. We advised some of our ...
1
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2answers
506 views

What are DKIM (DomainKeys Identified Mail) and The SPF (Sender Policy Framework)?

I recently saw that cpanel has new entry for DKIM (DomainKeys Identified Mail) and The SPF (Sender Policy Framework). They seems to be talk about a mail/spam prevention, etc I would like to ...
0
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1answer
78 views

Rewrite header when no dkim header for specific domains

I have been receiving a lot of mails that are "From" my domain. These mails have usually a different return path (spf passes), but have for example my email in the to and the from header. ...
5
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3answers
2k views

PTR OK, SPF, DKIM passed but email messages are marked as Spam by Google?

# host 1.2.3.4 4.3.2.1.in-addr.arpa domain name pointer mail.domain.vn. # dig +short txt domain.vn "v=spf1 a mx ptr -all" # dig +short txt mail.domain.vn "v=spf1 a -all" Here's an email header ...
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1answer
2k views

Is SPF record valid?

I am getting "softfail error" for the current spf record what should i do? This is the original mail i got from my domain. I added the spf record in my dns. v=spf1 mx mx:smtp.secureserver.net ...
1
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1answer
516 views

FROM: header is forged, SENDER: is legit , spam is delivered. how to detect?

In short: What happens: FROM: header is forged, SENDER: is legit , spam is delivered. What i need: Detect forged FROM: when possible, block delivery Explained: I have a exim server (on cpanel ...
1
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1answer
248 views

SPF google mail + MY IP

So this TEXT record response hardfail XX.XX.XX.XX => my mail server v=spf1 ip4:XX.XX.XX.XX include:aspmx.googlemail.com ~all Question is how to create valid SPF record for sending e-mail for my ...
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3answers
4k views

SPF record when sending mails from two different IPs

I have somedomain.com on IP 1.1.1.1 I send/receive mail using Outlook connecting to mail.somedomain.com So my DNS records for somedomain.com are the typical: www.somedomain.com >>> A ...