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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4answers
385 views

Where to set up MX and SPF records on sendMail or google apps mail server

Here is my senario: I have domain say myDomain.com is using google app mail server to send and receive emails I have a sendMail server deployed on my a cloudServer that I am using to send email ...
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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 ...
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2answers
372 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
113 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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2answers
400 views

Correct DNS settings for my server setup

I am struggling to understand the correct DNS settings for my server setup. I have a web server with a single IP and 6 domains hosted on it. I got IIS6's SMTP virtual server working yesterday and ...
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2answers
547 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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2answers
616 views

SPF record for media temple domain and google together

Hello I'm trying to add an SPF record for our MT dv server as per this tutorial: http://kb.mediatemple.net/questions/658/How+can+I+create+an+SPF+record+for+my+domain%3F#gs Which instructs me to add ...
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2answers
351 views

Softfail / Failure Notice on SMTP

i'm searching for an answer for about 24 hours now and I still can't find any really useful help... The problem appears as the following: I'm running a debian server with Plesk 9.5.3 and qmail. ...
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2answers
306 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
110 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 ...
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1answer
123 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, ...
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1answer
80 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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1answer
812 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 ...
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1answer
67 views

DMARC is blocking email that seems like it should be allowed

This is the DMARC record we have set v=DMARC1; p=reject; rua=mailto:[redacted]@coinbase.com; adkim=r; aspf=s So we are rejecting any not match with SPF strictly, and DKIM is relaxed. Here is the ...
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1answer
55 views

Dns filezone setup with mx and spf

I am trying to create a mail server. I bought the domain mastermails.info on godaddy.com. I am struggling with the setup of DNS. Whenever I change something in the MX record to make my server ...
0
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1answer
25 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...?
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1answer
88 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 ...
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1answer
101 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 ...
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1answer
34 views

Next Step in Migrating Exchange 2003 to GMail (SPF risks when changing MX record vs disable SMTP)

Our company has been struggling to migrate Exchange to GMail for last 2 years (I will leave this for /r/talesfromtechsupport). We have two domains on two different ccTLDs, and lately Exchange is just ...
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1answer
110 views

rDNS setup to prevent emails appearing as spam / phishing messages

We are trying to send email without the email appearing in the spam folder. The emails that we are sending is solicited bulk email. The main problem is that the emails are appearing as phishing ...
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1answer
406 views

DKIM in Plesk with DNS managed remotely

Our primary domains DNS is managed over at Amazon Route 53, and so in Plesk (11.x) I've turned DNS off. The problem is that I want to begin using DMARC which requires both SPF and DKIM txt records to ...
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1answer
220 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 ...
0
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1answer
190 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 ...
0
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1answer
149 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
69 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. ...
0
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1answer
32 views

I have a mail server that hosts several client emails but 1 in particular is being blocked because of its SBRS score

If I was hosting emails for 3 clients and my reverse DNS is mail.allclients.com and I am hosting for client2.com, client3.com etc. What would be the rDNS for client3.com? Would it reflect the rDNS of ...
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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 ...
2
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0answers
29 views

Sendmail on CentOS 6, with SRS

I do some mail forwarding, but I'm also a big fan of SPF; I'm aware that I have a problem. While my mail server was running Centos5, I was using pysrs as a milter, and it worked well - but it hasn't ...
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0answers
60 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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0answers
13 views

gmail and postfix with a little blacklisting thrown in

I have postfix and dovecot running on debian 7, I can send mail fine, but it keeps going to my spam folder when sent to google accounts. Another user who doesn't use gmail said it was delivered to his ...
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0answers
32 views

Use greylisting only if SPF fails

I have noticed that more and more people using the DNS based SPF records and I want to enhance my spam filter. I am using SPF and greylisting after each other and my idea would be to use only ...
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0answers
212 views

553-Message filtered - HELO Name issue?

I am having major issues sending from my SBS2011 machine to Message labs server-13.tower-134.messagelabs.com #553-Message filtered. Refer to the Troubleshooting page at ...
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0answers
47 views

How to prevent emails from my domain through mailing lists to be rejected due to DMARC

I operate my own mail server at speedofsoundgaming.com and mwtd.net. I recently added a DMARC record to my domain to help prevent spam, and once seeing that things seemed to be working, upped the ...
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0answers
27 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 ...
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0answers
126 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 ...
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0answers
167 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, ...
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0answers
257 views

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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0answers
77 views

SPF and postfix settings. Sent emails aren't delivered

I just finished setting up a Debian server but my emails aren't being delivered to hotmail/live emails (they don't even show up in the spam folder). They are however delivered to Gmail addresses along ...
0
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0answers
138 views

SPF and DKIM breaking BlackBerry BIS

I set up DKIM and SPF on our domain that uses Google Apps to host email. A few hours later, the BlackBerries that were connected to it were not letting us send out emails quoting "General Failure". ...