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1
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2answers
53 views

Postfix stopped sending to the internet

I am quite new in server managing, and I have a vps with Centos 6.5 / Plesk 11.5. My problem is that after having two mail accounts hacked, and used to send spam mail, I now can't send to most parts ...
-1
votes
1answer
23 views

how can I imapsync from mailserver to my local machine [closed]

How can I use imapsync to fetch all the emails from the mailserver to my laptop? (with hierarchy of folders and all)? Do I have to have a mailserver setup on the other end too?
-5
votes
1answer
61 views

how to not bounce, postfix to not return “not found” when the address does not exist [closed]

I want to enable a second MX with the same domain, with some users on different MX. how is this to be done? how do I tell postfix to not bounce, postfix to not return "not found" when the address does ...
6
votes
3answers
286 views

Having trouble with DNS MX records

I've been reading this: http://www.zytrax.com/books/dns/ch8/mx.html For MX records, and I've setup my nameserver via bind. Here is my zonefile for my website: $TTL 86400 @ IN SOA ns1 root ( ...
0
votes
2answers
65 views

SPF record for hostname of postfix instead for every sending domain

I am having a server reachable via server.com that has a postfix mailserver running with the hostname gaia.server.com. Because reverse DNS is only needed for mail purpose (afaik) I changed the reverse ...
0
votes
0answers
101 views

Autodiscover for IMAP over SSL

Is it possible to setup Autodiscover for your domain.com without the use of an Exchange Server in the back-end? I already have an IMAP/POP3/SMTP hMailServer running on Windows with IIS Web Server. ...
2
votes
1answer
983 views

Is it possible to receive inbound emails using Mandrill?

I am using Mandrill mail server for sending emails to users and I have my own domain added to Mandrill to send out mails. Suppose I have configured Mandrill to use info@mydomain.com to send out emails ...
4
votes
1answer
249 views

Mail Server Storage Backend: Filesystem VS Database

I am trying to compare mail server software to decide which to use at the ISP where I work. I'm confused mainly about which storage backend is better for such use (again, at an ISP, i.e expected large ...
1
vote
1answer
73 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 ...
0
votes
2answers
1k 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
975 views

Postfix Connection Timed out

I used the tutorial below to setup postfix and dovecot on a Digital Ocean server. But I'm getting "Connection Timed out" when postfix/smtp tries to deliver an email to a remote host like gmail or ...
2
votes
3answers
2k views

Postfix can not send to some mailservers: 'not logged in'

I have setup a Postfix stack (with Dovecot and Spamassassin, ClamAV + Amavis) which is working pretty good, actually. It relays my emails (I am using Thunderbrid as client) to other mailservers. I ...
-5
votes
2answers
506 views

Our exchange server is sending out a lot of spam [closed]

We have an exchange server 2003 and our IP address was blacklisted. When I check the Queue folder in the exchange server root directory, there are tons of Delivery Status Notification (Delay/Failure) ...
-1
votes
2answers
52 views

Postfix Configuration files

Kindly find your help on th below :) I am about to install postfix 2.10.2 on my RHEL server 5.9 I'll do this via source code. I need to reconfigure paths in main.cf, Example: /etc/postfix -> ...
2
votes
2answers
82 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 ...
-1
votes
2answers
632 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
votes
0answers
73 views

Passproxy issue in apache - citadel installation

I am running Apache with several virtualhosts. To configure Citadel, I am running WebCit along with Apache (which is recommended option by Citadel). Apache should ideally forward ctdl.example.com ...
1
vote
2answers
371 views

Postfix: Transport Maps via Third-Party Relay Host

I have my website and email hosted with a shared host. Unfortunately their servers are using CPanel, so they are limited in their spam protection options. I also have a VPS that I use for testing ...
2
votes
1answer
121 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 ...
0
votes
3answers
53 views

Using another mailserver and domain because of spam status

A customer (customer.com) kind of abused a mailing service (iContact) by sending to much promotions. They used their main email as sender (info@costumer.com). Because of that action, hotmail banned ...
1
vote
1answer
788 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 ...
1
vote
3answers
225 views

How to prevent Linux server from spamming?

I installed mail scanner for spam protection, but is there any script for Linux to notify me or email me that some one spaming on my server ?
-4
votes
1answer
240 views

Web server and mail server on same machine? [duplicate]

I just purchased VPS from DigitalOcean and installed LAMP but stuck at mail server. We get 5000+ visits/day and we do sent newsletters to our 10000+ subscribers 2 to 3 times a week and want about 20+ ...
0
votes
2answers
159 views

Using the same VPS for web server and mail server

I'm considering moving to a VPS for my web hosting needs (my own site and a few customers; nothing major - a few hundred visitors a day, and occasionally a few thousand). Since I'm unhappy ...
-1
votes
1answer
66 views

Storing mail server data on multiple storage servers [closed]

I'm trying to provide an email service for my clients And i like to know is it possible to store mail-server data on different servers Something like cloud services I'm a beginner , And i have ...
0
votes
1answer
35 views

How can I maintain ubuntu 12.04 servers without a mailserver running on them

How can I run an ubuntu 12.04 server without a mailserver running on it? This is for improved security and easy mantenance. I don't need mails processed on the system, I read the log files instead. ...
0
votes
1answer
383 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 ...
0
votes
0answers
83 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 ...
0
votes
1answer
387 views

IMAP Folders with Ubuntu 12.04 mail server: postfix-courier-ssltls-spamassassin-clamav-amavis

I setup this mail server a few days ago according to this tutorial, worked fantastic: ...
1
vote
1answer
96 views

Connection Time out on Email forwarding

I have a situation when forwarding from postfix mail server to yahoo,gmail,aol,icloud and many others forwarded email delivery to major ESP stopped at once though it works for my company email and the ...
0
votes
2answers
810 views

How to find emails sent,deferred, bounced with logs on exim mail server?

I am new to exim mail server. Now i need to findout the number of sent, deferred , bounced emails through logs. Since in postfix I will do things through grepping. Is there any way to find in exim ...
0
votes
1answer
89 views

How to create a read only email account on postfix mail server?

I need to create a read only email account in a postfix mail system. Could anyone help me how to do this on a postfix systems ? Your help is greatly appreciated ! Regards, Karthick
0
votes
2answers
868 views

What step blocks mail forwarded from own domain to gmail [closed]

I have my own (personal) domain where all email sent to this domain is forwarded to my Gmail account. For this purpose I use the ZoneEdit MailForward function. Since about 3 days (without changing ...
2
votes
1answer
981 views

Postfix - how to block emails sending out to a particular domain

I am having Postfix installed mailserver and I am using that server for legitimate purpose only. I need to block some outgoing emails for a particular blacklisted domain. Is there anyway to do ...
-4
votes
2answers
136 views

POP download from now on [closed]

Is it possible to configure options on email server containing Postfix and Dovecot, features similar to Gmail settings: Enable POP for all mail (even mail that's already been downloaded) Enable POP ...
2
votes
2answers
572 views

Cannot receive greeting message from remote mail server

I am trying to setup a mail server (postfix & dovecot) on Ubuntu. However, I cannot send/receive email, and get a similar error like posted in Postfix: lost connection with *somehost* while ...
0
votes
0answers
155 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 ...
1
vote
1answer
96 views

Can I use MX records to deliver some addresses to Google Apps and some to my server?

I have whm installed on my VPS, which my domain MX records are pointing to: 0:mail.mydomain.com and whm/cpanel has mail forwarding rules which pipes certain @mydomain email addresses into my CRM ...
3
votes
2answers
159 views

Mail Server suggestion for large inboxes

The employees in the company that I working are using mails alot. Some employees have more than 20GB of mail archive (Checked from Outlook data files). I am using hMailServer for mail server. The ...
0
votes
2answers
182 views

I've got very brazen pop3 attack how to protect the server?

Today I have brazen attack to my pop3-dovecot server and mail log is full over (200MB) with this kind of information: Nov 11 09:28:14 lax dovecot: pop3-login: Aborted login (auth failed, 1 attempts): ...
1
vote
1answer
154 views

limit size of error reply in qmail

We are using qmail as a mail server. If a user sends an email that cannnot be delivered he get's a message back from qmail with some details about this error. Hi. This is the qmail-send program at ...
0
votes
2answers
1k views

Block user from sending Email to the outside in SENDMAIL

I have a CentOS server with Sendmail installed and use Fetchmail for mail retrieval. My email server is working perfectly, but I now need to prohibit a user from sending emails to the outside. How ...
1
vote
1answer
651 views

When pointing to new DNS servers is there any chance of E-mails being lost even if the old E-mail hosting service is still up?

I am changing webhosts and will be using the new hosts mail servers instead of the old ones. I have created all the correctly named mailboxes on the new service but have also not yet cut ties with ...
-3
votes
1answer
234 views

Update namecheap domain records to smartermail server

I have installed a smartermail server on my Windows Azure web instance. I was able to send a test email (and receive it in my yahoo inbox), so I assume that everything on the Azure end is already ...
-2
votes
2answers
199 views

which mail server is better suited for high volume? [closed]

I'm planning out a project (web/mobile app) that would require a mail server that could handle hundreds of thousands connections per hour (both IMAP/POP and SMTP) and has the ability to interface ...
1
vote
3answers
351 views

Can a webmail client interact directly with the SMTP server? (without IMAP)

I'm trying to understand how all the components of a mail server fit together. I understand that the SMTP server is necessary to send emails. In terms of accessing email, I'll setup a webmail ...
0
votes
4answers
708 views

Web- and DB-Server: High clock rate and less cores vs. less clock rate and many cores

I am currently looking into setting up a new infrastructure for a hosting project of mine. Basically it will be managed hosting with a strong focus on Django-based apps. All will be Linux-based of ...
-2
votes
2answers
226 views

How Can I Load Balance Outbound Email?

My server have four external IP address. I want to distribute to this IP addresses for sending emails. For example : 1.st mail sending XX.XX.XX.10 ip 2.nd mail sending XX.XX.XX.11 ip 3.rd mail ...
1
vote
2answers
225 views

postfix sort mails using a cronjob

My mailserver consists of dovecot and postfix. I am receiving alot of mails from different mailing lists. These mails should directly go into my inbox when they come in, because it is easier to ...
2
votes
1answer
365 views

How to secure postfix to find out whether the emails are coming really from the sender?

Is it possible to secure postfix in a way, that incoming emails are checked on whether the email comes really from the sender? Is that possible to write php script and chose a sender, like the mail ...