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3answers
202 views

Mediatemple: One dedicated virtual server, multiple mailservers

I want to set up multiple mail servers within one dedicated virtual server in Mediatemple. For example, my server's primary ip address is 203.156.0.xx. My server has another IP address 203.156.0.yy. ...
2
votes
2answers
56 views

how to Dedupe email messages in exim mail server (Linux)

If a User is listed in multiple aliases or multiple mailing list or groups a message is sent to more than one of the aliases, mailing list or group the end User will receive multiple copies. How to ...
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2answers
132 views

Postfix: Helo command rejected: Host not found

i have a Postfix 2.9.6 running on Ubuntu with the following configuration https://gist.github.com/anonymous/400fb4afa05e18c6da2b and i'm suffering the following issue where a valid client tries to ...
2
votes
1answer
77 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 ...
1
vote
1answer
28 views

Postfix with virtual users won't send mail to domainname on server

A debian mailserver with postfix and courier is able to receive and send mail for domains listed in virtual_mailbox_domains without a problem. But if there is a mailadress used that is used during the ...
1
vote
1answer
279 views

Postfix smtp mail to external hosts not possible

I administer a server (Ubuntu 12.04 LTS) running a web server and a mail server - The web server is running all fine, but the mail server is a problem. I have Dovecot installed and configured ...
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votes
1answer
206 views

AWS EC2 Mailserver Failover Strategies done right

I'm researching in this topic really hard the last few days and i just want to discuss this with a few specific questions - i did not find any suitable thread here that is covering my needs and ...
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1answer
486 views

Issue with sending mails from thunderbird via postfix

I run into problem where I cannot send mail via SMTP by using for example Thunderbird - but locally from machine, mail sending works perfectly fine. Mail server got configured also dovecot - that is ...
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1answer
82 views

Mediatemple: Using another IP address as mail server

I have a mediatemple dv server and it has 3 IP addresses. Currently, it uses one of the IP addresses for the mail server. How do I use another IP address? Is it possible to use two of the IP addresses ...
0
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1answer
352 views

Script encrypting Mails on Server [Maildir/GPG]

The idea is to encrypt [cronjob] all mails older than x days with a certain [per user] PGP Key. Mails are stored in Maildir format. Are you guys aware of an existing solution to this? Or maybe ...
0
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1answer
245 views

E-mail -sometimes- delivered, and sometimes Relay access denied

I want to host my own (postfix) mailserver for my domain "mydomain.com". For the unlikely event that my server is down, I would like to have gmail.com receive all mail and forward it to my domain. ...
0
votes
1answer
93 views

Sending email from IP as domain Ubuntu

I want to install a mail server on an Ubuntu server, however I don't want to hook any domains up to it. Is it possible to configure it as an IP address, so my email address will be: me@ipAddress ...
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0answers
42 views

Postfix: Server to Server encrypted communication

I just built a Postfix, Dovecot and Spamassassin (ClamAV + Amavis) stack on my dedicated server. In the last two years I was using iredmail, wich was OK, but I was a bit sceptical because of my lack ...
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0answers
32 views

Passproxy issue in apache - citadel installation

i am running apache with serveral virtualhosts. To configure Citadel, i am running WebCit along with the apache (which is recommended option by Citadel). Appache should ideally forward it the ...
0
votes
0answers
71 views

Can I setup DNS on new server and “flip the switch” later?

I would like to know if setting up DNS/BIND on a new server will mess up my old server. Here is my situation: example.com - Main server used for hosting - Domain registrar currently points to ...
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0answers
135 views

Cannot authenticate PAM IMAP dovecot server

I have recently followed this tutorial to set up a mailserver on my Debian Linux box. When I try to authenticate myself with telnet it just kicks me out if I don't specify a domain name and when I do ...
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0answers
151 views

How to exclude certain emails from AV scan?

I have a small email server set up with CentOS 5.7, Postfix, ClamAV and Amavis-new. Is it possible to tell ClamAv (or who is responsible) not to scan incoming emails with attached PDF files? Or at ...
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0answers
236 views

POP3 DNS configuration settings error

I made an email server and configured DNS. Now, I can send emails using both "localhost" and "smtp.mydomain.ext" but I cannot receive any emails back to my email server I using mail incoming host to ...