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 ...
29
votes
5answers
3k 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?
There are so many techniques and so much to know about fighting SPAM. ...
19
votes
3answers
6k views
DKIM sign outgoing mail from any domain (with Postfix and Ubuntu)
I got DKIM setup on my mail server (postfix and ubuntu) so it signs outgoing emails. I used these instructions:
https://help.ubuntu.com/community/Postfix/DKIM
However, I need it to sign emails from ...
0
votes
1answer
416 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 ...
0
votes
1answer
968 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
2k views
I can't send email from my server to gmail addresses
I'm using postfix, and have setup spf, dkim, and domainkeys. I can get my email to go to Yahoo, but not gmail. Here's the headers from an email send to Yahoo. Yahoo reports the email as domain key ...
0
votes
2answers
310 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 ...
8
votes
1answer
381 views
Are there any pitfalls to DKIM?
We are considering implementing DKIM, the pros seem pretty obvious. Are there any cons?
I know this is a bit vague and possibly subjective so I will accept what seems to me to be the most complete ...
1
vote
0answers
137 views
Sendmail rewriting headers after OpenDKIM signature
I have run into a problem described in section Sendmail REWRITING FEATURES on http://www.opendkim.org/README:
Due to the way the milter protocol is incorporated into the MTA, opendkim sees the ...
1
vote
2answers
172 views
dkimproxy unable to read private key
I just found this error in my server logs
May 17 14:55:07 marcus dkimproxy.out[1005]: signing error: Error: cannot read /etc/ssl/private/dkim_server/dkim_server.key: Permission denied
dkimproxy ...
1
vote
2answers
1k 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 ...
