Refers to the hardware or software that make up a server dedicated to sending and receiving emails. Many popular modern email servers bundle other functionality for contacts and calendaring along email delivery.

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1answer
43 views

Dovecot and virtual users issue

Kindly find your help on the below, I am using Dovecot 2.2.5 with postfix 2.10.2 on RHEL 5.9.. I've a problem that I am using Virtual mailboxes, I need to set passwords for them. I always have an ...
-2
votes
2answers
49 views

Postfix Questions [closed]

Kindly find your help on the below, I'm a beginner and I've Bulk of questions. I've downloaded postfix 2.10.2.tar.gz to install on RHEL server 5.9. Installation will be performed via source code. I ...
2
votes
1answer
82 views

Exim retry is Message based instead of host based? why

from what I understand exim retries are supposed to be HOST based, NOT message based. This seems to make sense to me; if a host's server is overloaded or otherwise telling you to "delay sending ...
-1
votes
3answers
45 views

Can I use MX Record Configuration to send one account's email to one server and a second account's email to a different server? [closed]

For example, let's say my MX Record(s) specify: 0 server1 mydomainexample.com 1 server2 mydomainexample.com Now let's say: me@mydomainexample.com is an account on server1 and ...
-1
votes
1answer
89 views

I can not use calendars hosted on the server with Thunderbird and Lightning [closed]

I am trying to use Thunderbird and Lightning to use caldav calendars. Still does not work. I have no experience with calendars, you likely have some things wrongly configured. I installed ...
0
votes
1answer
72 views

Setting up server for Google Apps? [closed]

So I am currently running CentOS 6 and trying to figure out how to get Google Apps (gmail) to work. I am completely new to mail server software but have a general idea of how it works. What software ...
0
votes
1answer
74 views

Having a local SMTP server to relay emails to my website's mail server

I'm working in a small company. We send our emails through company's mail server which is located (along with company's website) on a shared web host. Once in a while our Internet connection is down ...
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votes
2answers
401 views

Opened some ports with iptables but they aren't open

I'm running a Debian 7 server via Linode VPS, and have recently installed/configured a mail server using Postfix and Dovecot. The final step to complete this was to open up ports 993, 995, 465, and ...
0
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1answer
83 views

undefined reference to `icalcomponent_get_first_real_component'. In cyrus-imapd

When installing cyrus-imapd-2.4.17-caldav-beta9 and running make I get a lot of errors "undefined reference". I have installed: apt-get install libdb-dev apt-get install libsasl2-dev apt-get ...
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votes
0answers
72 views

Information about the “dot attack” to email servers

I have an email server working for about 1 year. I usually look logs to see what crackers try and find possible security issues. I have received several times a strange attack that I do not ...
1
vote
1answer
387 views

fatal error: libxml/tree.h: No such file or directory libxml/tree.h. In cyrus-imapd

When I run the make of cyrus-imapd-2.4.17-caldav-beta9 get the following error: In file included from httpd.c:68:0: httpd.h:48:25: fatal error: libxml/tree.h: No such file or directory compilation ...
0
votes
0answers
50 views

Cyrus sasl, Authenticate with Username and Password against Active Directory

I set up a mail server with Postfix and Cyrus IMAP so that the user and password you need to enter are those of AD. I need users can log in from any mail client just put your username and password. ...
0
votes
1answer
96 views

Sendmail server keeps relaying mail to wrong server

Email to my organization (mycompany.com) goes through 2 sendmail servers running on CentOs 5.6, mail01 and mail02. I've configured a new sendmail server, mail03, in a different site for DR purposes, ...
0
votes
2answers
92 views

Stop Postfix sending mail from localhost

When my mailserver sends mail here are the headers: Received: from example.com (localhost [127.0.0.1]) by example.com (Postfix) with ESMTP id EB14D48159 for <oli@myemaildomain.com>; ...
1
vote
2answers
70 views

Viability of private mail server

I own a domain whose MX record up until now pointed to a commercial mail server where I had an account for the domain; that was the only account, call it me@myplace. I now need to add some email ...
0
votes
2answers
1k views

Dovecot configuration error (Permission denied) - Email for root

I have setup a local user called postman and logged into it using Thunderbird (IMAP). Following is being shown in the mail error log. Dec 14 23:45:18 ams1 dovecot: lda(root): Fatal: Invalid user ...
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0answers
233 views

Postfix SASL AUTH relayhost via exchange

I am having an issue try to relay emails from postfix via a hosted exchange relay. I have added the authentication details in and enabled SASL auth however I am getting the following error (I have ...
0
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0answers
142 views

Qmail does not receive emails

I had this issue that I had to switch servers and I needed to have all the emails previously received to reside on the new server too. I was using kloxo on both servers. So I did a little research and ...
0
votes
1answer
30 views

Server 2012 + Exchange 2013 - Mail not routing

Very strange behaviour working fine one day and not another. No patches installed from when it worked to when it didn't. SMTP receive connectors are also refusing connections now. No issues that I ...
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votes
1answer
55 views

Email Blast Policy Limit/Hours

I currently still developing email blast software. Last time i sending blast with quota 10.000 emails/hour. I got notification from my server admin if my IP is blacklisted because of spam. Can you ...
0
votes
1answer
53 views

If one SMTP Server is down, routing all requests to another, how to achieve?

I have an application which uses e-mail notifications at many levels, so if an SMTP Server is down, I get in trouble. I can't switch the SMTP adress in all my configs fast, or lets say even don't want ...
1
vote
0answers
158 views

Postfix mail stuck in queue indefinitly

I've been trying to set up a simple mailserver for myself using the following guide : Guide. I've added my domain via Postfixadmin and setup a info@mydomain.org mailbox. But when I try to send to mail ...
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votes
3answers
200 views

Mysterious automated emails

I remember messing around with crontab and setting up email capabilities on a server many months back, and now all of a sudden I'm getting the following email: EMAIL HEADER: from: root ...
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votes
2answers
108 views

Debian - Setup email accounts - Postfix, Dovecot

I have a vps with Debian 7.2. I will host 3 websites in the server. I feel lost and i want some help creating the email accounts for each domain. Here is my setup so far concerning the email: # ...
0
votes
1answer
378 views

TLS connect failed: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac while sending mail via Qmail

I'm trying to send e-mail to one of the biggest polish hosting companies and their servers are refusing to receive it with message: TLS connect failed: error:140943FC:SSL ...
0
votes
2answers
168 views

Postfix noqueue reject

I have own a vServer and multiple domains. The server is mainly used for Websites but I've also set up postfix and dovecot to deliver mail. Everything is working as expected. Even for different ...
2
votes
2answers
54 views

Move Maildir safely on running server

I want to move some Mailbox directories to a new disk while postfix and courier imap daemons are still running. The question is ¿what happens if a new mail is recieved into the Mailbox while moving ...
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votes
2answers
54 views

create own mail id with mydomain.in [closed]

I want to create my own mail ID like myname@mydomain.in instead of paying extra to google for extra mail ids as I have already myname@mycompany.in. Things I have are mydomain.in(I paid for this ...
0
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1answer
500 views

How to correctly configure postfix and opendkim and let receiving server know all details mailed-by signed-by?

What I am trying to achieve - Bottomline: mails to go in inbox rather spam folder. I have a server which is running postfix (mail server) and I have 3 domains. Mail server is used for both incoming ...
5
votes
1answer
291 views

saslauthd multi instance for postfix smtp authentication

I have mail server Postfix+Saslauth. I configure multiple instance for Postfix: postfix postfix-out and two instances for saslauth: saslauthd saslauthd-out Setting saslauthd is ...
0
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3answers
152 views

SMTP sent E-mail not copied to Sent Folder [closed]

I discovered that some (few) providers don't copy into the Sent folder those E-mails which are sent from mail clients through SMTP. They only copy them to the sent folder if you send them from their ...
1
vote
1answer
19 views

Postfix doesn't accept pipe

I've tried to configure postfix to execute the script /tmp/test.sh each time the user "bounce" receives a mail. My /etc/postfix/aliases: ... bounce: "| /tmp/test.sh" ... If I send an mail to that ...
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0answers
275 views

postfixadmin won't create tables structure

I made a wrong installation of Postfixadmin and decided to uninstall it completely and to try again. Although it was working fine before, the tutorial I'm following to create a file server made a ...
0
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3answers
155 views

postfix sending newsletters as spam to the receivers [duplicate]

I have some problems with my postfix setup. We send newsletter regulaly to our customers once or twice a week. and we have expierenced that many customers do not get their emails, it's simply because ...
0
votes
1answer
51 views

Which is wrong: emailing links that only work once, or a virus scanner that visits links? [closed]

I ran into an interesting bug today. I was trying to update my address on a mailing list, and it sent an email to the new address, with a unique URL that I was supposed to visit to confirm my ...
2
votes
1answer
61 views

Move email hosting with no bounces?

Our web site and email is currently hosted by a shared hosting service. We'll be moving both of those to a VPS soon, and I'd like to make sure that we experience as few delays as possible, and no lost ...
1
vote
2answers
68 views

Should I put my email server in a public subnet or put in a private subnet and use load balancing / routing to route traffic from the internet?

I have 3 subnets setup in a Amazon VPC: public, private application, private database. My web servers are currently in the private application subnet and use a NAT Instance to see the internet. I ...
0
votes
1answer
40 views

Access email from check email from backup mail exchanger

I have hosted my website on godaddy. I have mx record (priority 0) to the mail server in the office. I have another mx record (priority 20, belonging to godaddy) as a backup to hold emails when the ...
1
vote
1answer
39 views

Second email “domain” on Server 2003

Pulled over from super user, due to lack of response. Currently small company setup on a sbs server 2003. We are set up with our domain 'sample.ca' In this setup all email is handles by exchange and ...
1
vote
2answers
510 views

Postfix virtual setup not delivering root-mails locally

I've got a postfix virtual setup with MySQL and dovecot. Everything is working fine, the only problem currently is that mails to root are not delivered locally as it should be. Instead, postfix ...
0
votes
0answers
14 views

MailEnable Forgoes Authentication for Local Recipients

I am running MailEnable 2.x on a rather active production server. I blocked any ability to send unauthenticated email through the server, and (in theory) turned off all domain spoofing abilities. ...
0
votes
0answers
508 views

CentOS 6.4 x64 iRedMail SMTP Error: (451): Failed to add recipient

been managing my own servers for a bit now, but new to mailservers in general. I have gotten iRedMail installed on my box (CentOS 6.4 x64), but I'm getting an error when it comes to actually sending ...
0
votes
1answer
233 views

how to configure Exim4 on Debian 7 so that email *from* foo.com VPS to anyone@foo.com goes to anyone@foo.com at bar.com?

So. There's two servers---foo.com which is a VPS, and bar.com which is a shared host running cPanel and has been configured to accept mail for foo.com. foo.com has a fresh install of Debian 7 and ...
1
vote
1answer
134 views

Email server can send internal, but messages never arrive at external recipients

I'm running MailEnable on my server, and have been for many years. Recently we had an attack on our server, and I was able to close the hole. Since then, our mail server doesn't seem to be sending ...
0
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0answers
29 views

Spammers sending out from an inactive domain

We have a shared hosting service running QMail and Plesk. One of our inactive clients was left active in the system by mistake, and spammers found their very weak passwords and sent out a massive ...
0
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0answers
41 views

Postfix mailserver 550 bogus response

So I have a mail server setup on my Amazon EC2 Debian instance and it's been fine for months however recently I received this response from a customer: <user@customer.co.uk>: host ...
0
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1answer
70 views

Setting up mail forwarding on Debian 7

Does any one know of any good guides/tutorials on setting up mail on Debian 7 so the system can send emails but doesn't accept mail locally? I've played with Postfix a little but I don't really know ...
0
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0answers
91 views

Use gssapi with Microsoft office outlook.

Currently in windows computer I have installed Kerberos for Windows. This allowed me to use sso with Thunderbird against a Cyrus IMAP. Thunderbird has the option of using GSSAPI. Is possible to ...
0
votes
1answer
79 views

Steps to make sure network is not blacklisted…Again

I have an interesting issue. I have a client that just got blacklisted due to spam being sent out over the last 2 days. I have my firewall configured to only allow mail to go outbound on port 25 ...
0
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1answer
488 views

CLAMAV on Centos Mail Server: Can't connect to UNIX socket clamd.sock

In my Centos 6.4 server, I am using Postfix and Dovecot with Amavis/ClamAV filter. Lately I have been trying to solve my spam problem(only occurs in Gmail and Hotmail) so I've been tailing logs. ...