DomainKeys Identified Mail is a scheme for signing and verifying email messages to confirm that that the source hasn't been forged, and is typically implemented by MTAs. The source MTA adds a header to the message body containing a signature, and the destination MTA verifies this signature against a ...

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2
votes
1answer
2k views

DKIM on postfix relay server

I have a postfix/amavis relay server, with the domain name mail.example.com. It will be a relay for dozens of VPS's, which will have domains like hostname.example.net. So i have actually two ...
2
votes
1answer
832 views

How to fix DKIM for mail on VPS hosting?

I have a hosted VPS that is fully managed by the hosting company. For weeks they cannot figure out how to get DKIM working for my emails, even though in cPanel's Email Authentication section says DKIM ...
1
vote
1answer
4k views

How to setup X-SID , X-AUTH & X-DKIM at windows server 2008 r2 with IIS 7.5

I am very sad that my legit emails drops to spam box while i receive many spam emails into my inbox. I very rarely send announcement emails to my all registered members (over 400k right now) but most ...
1
vote
1answer
393 views

using own mail server with external domain and dns. Now have internal dns. dkim test not working

I am not very knowledgeable in this area, but have been able to make great head way. Now i am stuck I setup my own mail server, e.g mailbox.example.com. I had the domain dns point to my mail server ...
1
vote
0answers
440 views

Not Connecting from my zimbra webmail

I have configured zimbra webmail on centos 5.5 64bit server for e-mail authentication. I have installed DKIM and dk-filter on it after installation to check authentication. I tried to open zimbra by ...
0
votes
1answer
122 views

Spf dkim edit dns zone mailing issue

I am running an hosting company and i was previously affliate of hostgator. when i sent mails from my domain to my customers it would come as info@example.com via hostgator.com and mailed by ...
0
votes
1answer
493 views

adding DKIM signature to email where dkim=pass

I am building a e-mailing app and I am using Amazon SES API to send emails and long with that I am adding the DKIM signature to the email which are being sent. Presently the app is in the testing ...
-4
votes
2answers
311 views

SPF and DKIM configuration with postfix [closed]

I am using Centos-5 and have configured postfix mail server. How to i configure SPF and DKIM in Postfix.
1
vote
2answers
460 views

How do I use an include statement in a TXT record?

We have a client that is using an email service that requires a TXT domain key reocrd that is over 127 characters long. I'm pretty sure BIND allows this, however we run djbdns with tinydns and it ...
0
votes
3answers
226 views

Sending email from a 3rd-party-hosted server

We contracted with a 3rd party vendor to build and host a web application for us. The web app will need to send email notifications out to users when they request it. The application is not hosted ...
0
votes
1answer
523 views

How do I setup a SMTP ID to my server?

I am trying to increase email deliverability, from what I read, most important things I need to have set are SPF records, DKIM and sender ID, I set SPF and DKIM, but... "sender ID" is same as "SMTP ...
-1
votes
1answer
300 views

Confused with Domainkeys. Help?

I generated a domain key for my domain at http://www.socketlabs.com/services/dkwiz and got the following two things generated. Generator Key1: Setting up Hurricane Server Edit the configuration for ...
3
votes
1answer
2k views

How to add DKIM feature to the IIS 7.5 - Windows Server 2008 - DomainKeys Identified Mail

How to add DKIM feature to the IIS 7.5 - Windows Server 2008 DomainKeys Identified Mail
0
votes
2answers
1k views

DKIM-filter is signing mails with invalid DKIM signatures (v=1 instead of v=DKIM1 etc)

I followed the dkim-filter install instructions from Ubuntu's community help page My dkim-filter is signing DKIM signatures with this v=1; a=rsa-sha256; c=simple/simple; d=my.domain.com;s=mail; ...
3
votes
1answer
5k views

How do I use OpenDKIM with multiple domain names on a single server?

How do I use OpenDKIM with multiple domain names on a single server? I own 3 domain names, and I have a single server that's running postfix for sending email. How do I use OpenDKIM? Can I use the ...
0
votes
2answers
863 views

DKIM multiple mail servers

We currently have a single mail server (RHEL/sendmail) for all mail "mail.example.com". We have added a second mail server "email.example.com". We intend to use this for bulk email, while ...
0
votes
3answers
3k views

OpenDKIM Filter: Unable to create listening socket

hi i keep getting this error in maillog.any ideas Jul 22 10:16:52 veepiz opendkim[5145]: OpenDKIM Filter: Unable to bind to port inet:20209@localhost: Address already in use Jul 22 10:16:52 veepiz ...
0
votes
1answer
4k views

problems with opendkim and postfix centos

Hi im having problems with opendkim signing mail. check my log. i fixed the permission issue by chowning that file. but still emails are not being signed. any clues? running on centos5 with ...
1
vote
1answer
307 views

cron jobs for php executing differently

I have setup dkim on my server using opendkim(centos). when php executes mail command(on website eg forgot.php). it sends an email signed with DKIM. but i also setup a cron job to run mailcron.php ...
0
votes
2answers
288 views

Yahoo is sending our server's transactional email to the Spam folder, even though we have set up SPF and DKIM

Yahoo Mail is sending our server's transactional emails to the Spam folder, even though we have taken quite a few anti-spam steps. By contrast, Gmail allows the messages through to the inbox just ...
0
votes
2answers
567 views

Getting started with DKIM / DomainKeys

I'm using WinServer to generate and send emails via my Goggle Apps-hosted domain (my SMTP server is smtp.gmail.com) . My registrar (Network Solutions) supports Text records - so I should be able to ...
2
votes
1answer
726 views

Mail classified as spam, but passes SPF and DKIM

I have configured Postfix to be responsible for subdomain.example.com (google apps is responsible for example.com so I didn't want to mix the two). As I mentioned in question title, SPF and DKIM ...
1
vote
2answers
189 views

Trying to configure email server for sending only

I need to install Postfix or Exim to be able to send emails from my web server's php code. I have a few questions hopefully I can find answers to: Could mail be rejected or sent to spam on ...
0
votes
2answers
353 views

Simple Outgoing Mailserver With Dkim filters [closed]

What is the most simple MTA to use and configure on Debian 6 squeeze, with dkim filters? I would like to only send mail from it, not receive. Google apps handles my inbound email.
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votes
1answer
142 views

Need a good guide for setting up postfix [closed]

I will be sending mail from my machine (just sending, not receiving any) I'm looking for a good guide that will help me configure it with all the things that are required so that receiveing servers ...
1
vote
1answer
325 views

messed up confused dns records!

I'm totally new to this, please help. While trying to redirect the mail from my server to gmail using MX records, I think I've messed up, and I'm way confused about that. First: I can set DNS records ...
1
vote
2answers
165 views

would this header cause the email to be flagged as suspect?

Authentication-Results: [snip].mail.[snip].[snip].com from=someDomain.com; domainkeys=neutral (no sig); from=someDomain.com; dkim=neutral (no sig) Received: from 127.0.0.1 (EHLO ...
-1
votes
1answer
2k views

dkim signature not present or bad format

I'm going mad with dkim-filter + postfix. My message are signed but Gmail notify me errors like "dkim=neutral(no signature)" or "dkim=neutral(bad format)" I don't know what is wrong. I've generated ...
1
vote
2answers
283 views

How do I make Yahoo recognise my DKIM keys as DomainKeys

My outbound email is working correctly with DKIM, and I"d like to thet the lock icon next for my yahoo recipients. Since DKIM is the new DomainKeys, what can I do to enable what seems to be a ...
3
votes
2answers
5k views

How do I enter a strong (long) DKIM key into DNS?

I'm trying to enter a 4028 bit DKIM key into DNS and it seems that I'm exceeding both the UDP 512 byte limit and also the maximum record size for a TXT record. How does someone properly create a ...
2
votes
1answer
3k views

ive got dkim=neutral (bad version) header.i with gmail and dkim=fail (unknown key type) with yahoo

I'm having external ip and ubuntu server with exim4.71 and bind9. I'm trying to set valid dkim entry to send mail for gmail Here are my configuration files: bind9: _domainkey.example.com. IN ...
0
votes
1answer
345 views

Can I use DKIM verification without DKIM signing?

I'm using iRedMail and im wondering if I can use only DKIM verification and dont signing emails with DKIM??
3
votes
3answers
7k views

What exactly is a X-YMailISG header?

Finally ... our emails are being seen by Yahoo! not as junk anymore. Hurray! However I notice that the Yahoo! receiving MTA adds in a X-YMailISG header. It's very large ... 2**10 bits? Now that ...
2
votes
3answers
4k views

DKIM- Filter No Signature Data

I have installed DKIM-Filter on Postfix after reading this tutorial http://www.unibia.com/unibianet/systems-networking/how-setup-domainkeys-identified-mail-dkim-postfix-and-ubuntu-server My email ...
2
votes
2answers
6k views

gmail dkim=neutral (no signature)

After testing much and retracing my steps, I still cannot get google mail to validate. My mail server is Debian 5.0 with exim Exim version 4.72 #1 built 31-Jul-2010 08:12:17 Copyright (c) ...
2
votes
1answer
701 views

DKIM for email through Google Apps domain with external outbound relay

I'd like to enable the new Domain Keys DKIM email authentication feature for a domain hosted in Google Apps. Some of my users use an external SMTP gateway (such that when they send email, it doesn't ...
1
vote
1answer
230 views

What's wrong in this “test -f” bash script that prevents dkimproxy from starting?

I was trying to configure dkimproxy on my server, after having used dkfilter for long time with success. The reason why I chose to "upgrade" is that DKIM protocol seems to be better supported than ...
0
votes
2answers
2k views

Gmail uses both DKIM and DomainKeys, while Hotmail uses none?

I noticed that Gmail messages have both a DKIM-Signature header and a DomainKey-Signature header, while Hotmail messages have none. What is the purpose of using both DKIM and DomainKey signatures, ...
0
votes
1answer
791 views

DKIMPROXY signing wrong domain

Just.... wont sign a thing... The dkimproxy_out.conf: # specify what address/port DKIMproxy should listen on listen 127.0.0.1:10028 # specify what address/port DKIMproxy forwards mail to relay ...
0
votes
2answers
1k views

How to install dkim for postfix in centos 5.4

I am trying to install DKIM for my postfix so that i have a signature. I am following this guide: http://allaboutlamp.com/2009/09/setup-dkim-for-postfix-in-fedora-using-dkim-milter/ But how do i ...
0
votes
1answer
789 views

Opendkim verification when using Dspam

I have Opendkim working well for signing messages but verification fail, I guess that's because emails are injected from Dspam on 127.0.0.1:25000 so Opendkim try to sign the mail instead of verifying ...
0
votes
1answer
698 views

DKIM and Request-Tracker Headers

I have a domain that sends two different types of emails: ones that are created via automated processes like notifications that go out to users, and ones that are generated from Request Tracker (the ...
1
vote
3answers
783 views

Transactional Emails from my server goes directly to Spam folder of users in Yahoo

I am trying to setup our website portal to send registration confirmation emails to customers who sign up (its a simple message containing a link that confirms the email of the user). Everything is ...
4
votes
2answers
2k views

SPF hardfail and DKIM failure when recipient has e-mail forwarding

I configured hardfail SPF for my domain and DKIM message signing on my SMTP server. Since this is the only SMTP server that should be used for outgoing mail from my domain, I didn't foresee any ...
6
votes
3answers
996 views

DKIM vs Domain Keys

I've configured DKIM (milter-dkim) on my mail server. Incoming e-mail sent from my domain now containts the following header: X-DKIM: Sendmail DKIM Filter v2.8.3 MYDOMAIN.com o7FLH1Wa032083 ...
0
votes
1answer
1k views

dkim signing is failing (according to spamassassin) and I need details to solve it

I am using qmail and libdkimtest to sign outgoing emails. The setup is almost exactly as per this tutorial (http://patchlog.com/security/qmail-and-dkim/). Emails I send out have a signature added, ...
1
vote
3answers
2k views

dkim-filter key retrieval failed

I've set up dkim-filter on my mail server. I've set up postfix to use dkim-filter as the milter; However, I'm getting the following in my logs: Jul 7 13:00:29 magni postfix/smtpd[6742]: connect ...
0
votes
1answer
109 views

What is the best approach for setting up a good, secure smtp server on Debian?

Which server do you recommend? (postfix?) Which configuration for authenticating users for sending mail? Which setups for making it inbox friendly (dkim, spf, domainkey etc)? Is there some detailed ...
1
vote
1answer
729 views

Replacement for windows SMTP server that supports DKIM signing

Can you recommend a SMTP server/component to replace the SMTP service that is available in Windows Server 2008. I would like the SMTP server to support the same feature set as the built in SMTP ...
6
votes
3answers
5k views

Setting up DKIM for multiple domains on same host

I have DKIM set up for one domain and it works properly. I am trying, though, to set it up for another domain name on the same machine. In short, I am sending registration and password recovery emails ...