Popular MTA (Mail Transport Agent).

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12
votes
7answers
15k views

Do you use postfix or qmail and why [closed]

I am setting up a server and I have the choice of installing qmail or postfix. Can someone help me make the right choice. Thing I like to see covered are: - Performance - Ease of setup - ...
4
votes
6answers
4k views

How might I stop BACKSCATTER using Qmail?

New to ServerFault , please pardon if my details are too much Linux box acting as Virtual Host for domain hosting. Runs CentOs. Runs Parallels Plesk 9.x Regardless of the following, the SPAM ...
3
votes
1answer
467 views

How did this email bypass my SPF settings?

I received a phishing email this morning that appeared to come from one of my addresses to itself. Looking at the headers, I found something interesting. DomainKey-Status: no signature ...
3
votes
3answers
485 views

Replacement for qmail?

Actually, it's not that I need a replacement for qmail, I already found one: Postfix. I need a replacement for the rest of the email stack, that works well with Postfix. My current setup constists of ...
3
votes
2answers
460 views

Is someone using my mail?

I found a whole bunch of this in my maillog (after my site went down from excessive resource usage): Dec 3 05:24:23 mysite qmail-queue-handlers[24524]: from=anonymous@mysite.com Dec 3 05:24:23 ...
3
votes
2answers
98 views

Is qmail needed if there are not email accounts?

I've inherited a server with some pages running. The person who worked on it has gone and there is no way to contact him. Recently I had some problems with the qmail service on this server (created a ...
3
votes
3answers
2k views

Server Memory Usage VERY high on new linux dedi box - How to find the issue?

I have recently aquired a dedicated server running CentOS and Plesk for my applications. These scripts were running on a 1.5GB ram VPS running CentOS and CPanel and worked very well. Now they are ...
3
votes
1answer
339 views

Changing qmail's failure notice message

I want to edit the message that gets sent by qmail via the postmaster account everytime a mail can't be delivered. Here's the original message: Hi. This is the qmail-send program at xxxx.com. I'm ...
3
votes
1answer
753 views

qmail responds 502 unimplemented on STARTTLS

I am trying to send mail with php using the PEAR Mail_queue package. It should be working, and it appeared to work twice, but for some reason I keep getting the following error response from qmail: ...
3
votes
5answers
699 views

Linux mail server just for forwarding mail

We are building a service of which one part will be forwarding mail; so there will be lots of user@domain.com "accounts" but these will only be forwarded - we will not have any actual mailboxes or ...
3
votes
4answers
1k views

Qmail does not forward mail to a specific domain

I have a dedicated hosting account with GoDaddy.com. I've pointed my domain's email to work with Google apps. The server has qmail running and it forwards email to all domains just fine except for ...
3
votes
1answer
433 views

How to edit bad word filter in SpamAssassin?

How can I add several custom "bad" words into SpamAssassin, so emails that contains that words are marked as a spam? UPDATE one of the keys is to edit file /etc/mail/spamassassin, and to add badword ...
3
votes
0answers
1k views

Copying email with qmail and Plesk

I need to keep a copy of all outgoing and incoming email (for a single domain if possible) using qmail or Plesk. I can't recompile qmail, so qmailtap is out of the question, as is setting QUEUE_EXTRA ...
2
votes
5answers
570 views

I need to know when qmail is not running

Obviously I can't send myself an email to tell myself that qmail is not working... at least not using qmail. How would you inform yourself about the fact, that qmail is not running?
2
votes
1answer
329 views

how to block network level mail spammer?

Here is the packet capture of how the attacker is coming to my server and generating Huge amount of spam, i am not able to block it by any means. 220 mta1497.mail.ne1.yahoo.com ESMTP YSmtpProxy ...
2
votes
4answers
16k views

CNAME lookup failed temporarily. (#4.4.3)

A friend of mine just told me that he can't send mails to accounts on one of my servers via the SMTP server provided by his ISP. The error message in the bounce he gets reads: Hi. This is the ...
2
votes
6answers
5k views

how to track down a spamming script?

My server sent 83,000 spam emails last night, I've been trying to track down the culprit, but I'm not sure how to find out exactly. in the logs the "from" address is always something like @#! the ...
2
votes
3answers
411 views

How can I get a notification from my server if the mail queue stops

I am using QMail with Plesk 10 on an Apache server. Occasionally the mail queue stops processing emails - this most recently happenend when an email account got hacked and started sending hundreds of ...
2
votes
1answer
4k views

smtp remote host responds “550 Sender verify failed”

A server I'm taking care of uses qmail for MTA. I can send and receive to almost every domain except one or two that give the following error, or something very similar: 550-Verification failed for ...
2
votes
2answers
407 views

Configure Qmail to pick up source IP depending on the source domain

How to configure Qmail such that for outgoing mails it will automatically set the source IP depending on the domain rather than using the default IP of the server. I think there is configuration in ...
2
votes
2answers
86 views

postfix rewriting sender with generic & header_check

I want to rewrite all sender addresses @example.com to newsender@example.org (to one static outgoing address) but I also want to have the original address added as the reply-to. I can do either ...
2
votes
4answers
203 views

Implement server-side (CentOS) measures to prevent hosted mailboxes sending bucket loads of spam

We have a number of hosted clients on one of our servers. One client in particular, which has four active mailboxes is repeatedly getting just one (and always the same one) mailbox infected so that ...
2
votes
1answer
1k views

How can I automatically inject an email signature server-side with qmail or other MTA?

We have a nice corporate email signature (NOT a huge disclaimer document, just a consistent 4-line email signature) that we have configured our email clients to use. It is small, tasteful, and ...
2
votes
1answer
1k views

Apache memory consumption

I am currently having very severe problems with my Linux CentOS dedicated server. For some peculiar reason, all of my memory is being consumed by apache and resultantly, my qmail process is crashing. ...
2
votes
1answer
1k views

Does QMail save a copy of emails sent?

I've been asked to retrieve a specific email for a user (true James Bond-style..). It has been sent through a mail form on our website, but the user never got an email confirmation receipt because ...
2
votes
1answer
190 views

QMail - a lot of failure notice in queue on relay open only to localhost

I configured a qmail server to reject messages if the recipient isn't listed in rcpthosts and I'm using tcp-env with xinetd to allow local procs to send emails to anyone adding following line to ...
2
votes
1answer
331 views

How can I set Qmail to relay all mail to one address

I'm new to qmail it's setup and working like it should. I need to set it to do something a bit different. I need it to take all mail that would be incoming to it and relay all of that to one address ...
2
votes
2answers
2k views

What do these messages in the Qmail maillog indicate?

There seems to be an endless supply of messages in the Qmail maillog for a single address. Can anyone shed some light on why this might be and whether it is a problem? To me it looks like either ...
2
votes
1answer
1k views

How to export qmail email accounts

I want to migrate a domain to another server. I am using qmail on both servers. Is there a way I could export all the email accounts settings (login, password, redirections, mailing lists, etc, not ...
2
votes
1answer
210 views

Linux/Unix MTA with the smartest queue?

I am looking for an MTA that will allow me (a script, really) to proactively manage its send queue in response to status codes returned by the remote servers I am delivering to. Basically, for each ...
2
votes
2answers
504 views

Forward incoming mail to two servers

We have several domains with MX records pointing at a gateway running Qmail that we have at the edge of the network, which in turn forwards it to one of several internal mail servers based on ...
2
votes
0answers
148 views

qmail log ALL outgoing mails

I have Plesk 11 and it's working with qmail I think. One of my customers have extrem high outgoing mail traffic. I want to log all his outgoing mails. How can I configure qmail to log all mails in ...
2
votes
0answers
101 views

QMAIL Bounceback to original sender?

my QMAIL Server sends all bouncebacks and undelivered message notifications to anonymous@domain.com and not the original sender. Is there any way to configure Qmail so that the sender receives the ...
2
votes
1answer
1k views

Qmail in Plesk is suddenly unable to send any message [closed]

I have a weird problem on Plesk 8.6 (CentOS 5.7). After a server restart, no mail gets delivered thru qmail. Neither to the local mailboxes nor to external addresses. All mail gets accepted, and no ...
2
votes
1answer
354 views

qmail smtpd uptime less then 1 sec

not sure what is going on here but my qmail install isnt working corretly everything is running except smtpd output from qmailctl stat /service/qmail-send: up (pid 2874) 608 seconds ...
2
votes
1answer
564 views

limit emails sent at once in qmail

I'm having an issue whereas my mail server is getting clogged with emails supposedly because qmail is trying to send too many messages at once. The emails are not spam. They are notifications sent ...
2
votes
0answers
268 views

Qmail: Sorry, no mailbox here by that name

I've added some email accounts with the help of Plesk. The strange thing is I can't receive any emails. The mail service is active. And sending mails works without any problems. The mailer-daemon ...
1
vote
3answers
453 views

Server Firewall preventing sending of email

The firewall on my VPS appears to be preventing my site from sending email. It was working fine until the end of last month. My hosting provider (Webfusion) has been next to useless. I am able to ...
1
vote
1answer
357 views

QMAIL - Do not handle emails for my domain

How can I stop q-mail from handling my domain specific emails? For example, I have a blog installed on my server and it uses PHP to make use of the mail() function to send out emails. ...
1
vote
2answers
1k views

Microsoft Outlook 2007 Limit attachment size

I have qmail server and authetication on Active Directory. All clients use Microsoft Outlook 2007 as default mail client. A have one central location and several remote location wich are connected ...
1
vote
2answers
2k views

What is the best way to selectively delete messages from a Qmail queue?

We're trying to delete 80% or 90% of the emails from a ~200k message queue. Ideally, we would be able to select the messages using regex. I can see the messages in the queue folder, but just ...
1
vote
3answers
505 views

Qmail Patching Makes me Nervous

We have a system running CentOS 5 with Plesk 8.6 and Qmail running. Our primary domain is hosted through Media Temple. When Plesk and Qmail are hosted on a single Dedicated Virtual server, it reads ...
1
vote
2answers
2k views

How can I configure qmail to send using a different IP per domain?

I would like to configure qmail to send email for certain domains using specific IPs for the outbound traffic. All other domains could continue to use the system's primary IP as usual. Is this ...
1
vote
3answers
1k views

QMail do not delivery to remote mailboxes for my own domain

Sorry for the title, I don't know how to sum up this situation. I have a web server at mydomain.com, running qmail for website related mail delivery (i.e. newsletter, sign up confirmation, etc). ...
1
vote
2answers
346 views

Why qmail queue is full of files?

Yesterday my server stopped working properly. After some digging, I found that the problem is that /dev/sda1 run out of inodes. Now I'm looking for some files to delete and I've found that at the ...
1
vote
2answers
2k views

Changing qmail's outgoing IP

QMail uses the server's default IP as its outgoing IP. How do I change the IP to something else? I tried the instructions in the following links but they don't work in my case. ...
1
vote
3answers
6k views

Set up a forwarding mailbox in qmail?

setting up a simple mailserver to forward all messages sent to one address to gmail. So far I have a file /var/qmail/mailnames/myserver.com/username/.qmail with a single line: ...
1
vote
1answer
931 views

Create a mailbox in qmail, then forward all incoming message to Gmail

I needed to let PHP send mails from my webserver to my web app users. So I installed qmail on my Debian server: sudo apt-get install qmail I also updated files in /etc/qmail specifing my domain ...
1
vote
1answer
229 views

qmail, recover email from the mess folder

The server has Plesk 10 installed. It uses qmail as the email service. After a migration from Linux based system to Windows based system, qmail is broken. It can send email fine but can't receive any ...
1
vote
1answer
220 views

Qmail with AUTH CRAM-MD5

My Qmail install on Centos5 has CRAM-MD5 installed. I want to use this to an authenticated SMTP relay. Where do I specify the username and password details for QMail?