The server configuration of email, including POP3, SMTP, IMAP, and popular server software packages that control email.

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12
votes
6answers
12k views

My email server is being blocked by Yahoo: TS03 Message permanently deferred

My mail server has been getting the following error from Yahoo's mail servers since about a month: postfix/smtp[23791]: host g.mx.mail.yahoo.com[98.137.54.238] refused to talk to me: 421 4.7.1 [TS03] ...
9
votes
1answer
2k views

Is using SOFTFAIL over FAIL in the SPF record considered best practice?

Or put another way, is using v=spf1 a mx ~all recommended over using v=spf1 a mx -all? The RFC does not appear to make any recommendations. My preference has always been to use FAIL, which causes ...
8
votes
3answers
22k views

how to disable remote wipe for Exchange 2010 ActiveSync?

When connecting android mobile devices to Exchange ActiveSync some require granting device administrator privileges which permit an exchange administrator to remotely wipe the phone. The warning ...
8
votes
7answers
7k views

Simple Mail System for Ubuntu?

What I'm looking for should be relatively easy. All I want to do is setup something VERY small for Ubuntu that will allow me to use the mail() function in PHP from my web server (/var/www/). I don't ...
7
votes
3answers
4k views

SMTP message rate control on Ubuntu 8.04, preferably with postfix

Maybe I am chasing a bug but I am trying to set up a smtp proxy of sorts. I have a postfix server which receives all the email for a collection of servers/clients. It them uses a smarthost ...
6
votes
3answers
18k views

How do I Forward root's email to an external email address?

I have a small server (Ubuntu 10.04) at my house and I would like to forward root's email to my gmail hosted domain to get security notifications and what not. I ripped everything out and started ...
5
votes
3answers
9k views

How do I temporarily suspend mail delivery to a specific domain (non-local) with Postfix?

Using Postfix and custom transports I can manage delivery speeds depending on the recipient's domain. (For example, I send max one message per second to *@hotmail.com) I also use similar rules to ...
5
votes
3answers
2k views

MX Backup service

What suppliers can you recommend, that provide an MX backup service?
5
votes
5answers
32k views

How do I configure reverse DNS for a SMTP server [duplicate]

We use iis 6 to send out emails for our website but some email addresses bouce backs. It only appears to be 2 addresses. There is at least 100 different email addresses sent to at the same time as ...
4
votes
3answers
2k views

How can i send /var/mail/root again?

Through some missconfiguration i've a lot of emails in /var/mail/root and /var/mail/www-data How can i "loop" over these files and send each mail another time? Thanks in advance!
3
votes
2answers
3k views

How can I route some emails to a script in Postfix?

How do I route all emails directed to user-*@example.com (i.e. user-1234@example.com) to a pipe command in Postfix? The idea is to create craigslist-style anonymization by assigning dynamic email ...
14
votes
6answers
944 views

How do you monitor a monitoring server?

So we run Groundworks (with Nagios) on CentOS to monitor our various servers and processes. I have it setup to automatically send emails and SMS texts when things reach a WARNING or CRITICAL state. ...
6
votes
5answers
5k views

Email sent from server with rDNS & SPF being blocked by Hotmail

I have been unable to send email to users on hotmail or other Microsoft email servers for some time. Its been a major headache trying to find out why and how to fix the issue. The emails being sent ...
5
votes
5answers
1k views

Email notification about each SSH connection to Linux server

I would like to be notified about each SSH connection to the Linux (Debian) server. Already saw some methods, which proposed to add mail command into own .bashrc, but this approach seems not to cover ...
5
votes
4answers
2k views

How do you test a new email filtering system?

What method do you use to test or evaluate potential new email filtering systems before you set it up on your production network? I am particularly interested in methods that are appropriate for ...
3
votes
2answers
4k views

Processing incoming emails with Python

I'm developing a web application that requires that a registered username be able to receive emails to: <some-username>@<my-web-app>.com I need a way to be able to process the email ...
3
votes
1answer
7k views

Can postfix be set up to forward mail to multiple recipients

I have the following postfix virtual file: test@domain.com bob@me.com This correctly forwards all emails to test@domain.com to bob@me.com However I would like to forward these emails to ...
2
votes
2answers
185 views

Recommendations for an external email marketing service [closed]

First off, let me say that the small number of emails we send out are not spam. We include removal links and the emails are generally centered around free webinars that our marketing department hosts. ...
2
votes
4answers
3k views

What's the best way to send bulk email?

I have been using the sendmail function in PHP with Exim 4 so far when I had to send my mailing lists, I would like to know if there is a clean solution for that. I'm quite sure that Facebook isn't ...
1
vote
2answers
200 views

SMTP Relay to capture attachments

Does anyone know of FOSS solutions (or general information) on setting up a Linux-bases SMTP mail relay that can do the following: Detect if a message has an attachment if so, save the attachment to ...
1
vote
4answers
5k views

How do I setup a SSL mail server?

For a beginner, can anyone recommend a good method of setting up a encrypted IMAP server (on port 993) or at least TLS POP3 email ? There are plenty of examples of opportunistic client side email ...
1
vote
7answers
529 views

Looking for mass email delivery service [closed]

I'm looking for a solutions to deliver newsletters through a reliable service provider. Currently, I'm using Lyris List Manager software on my dedicated server to send out newsletters to opted in ...
0
votes
6answers
581 views

Redirect all incoming mail to another user

Preferably this could be done with a virtual instance of a mail server on an existing Linux machine but I'm willing to run a whole other install (Linux or Windows) to get this to work. Basically a ...
10
votes
1answer
588 views

How do I audit user's mailbox actions performed via IMAP in Exchange 2010?

I read through the Technet article on Mailbox auditing but it seems to only be working for MAPI access. I perform the following cmdlet to enable auditing of the owner: > Set-Mailbox -Identity ...
8
votes
3answers
1k views

What good Active Directory + Exchange competition is there?

Based on this question regarding enhanced permission support in filesystems, what is the best permissions + directory and mail stack to compare against Active Directory on NTFS with Exchange? I'm ...
7
votes
2answers
13k views

How do I check a reverse PTR record?

I need to check a reverse PTR record to make sure that a script I have is sending emails which will actually received by my users and not incorrectly marked as spam. I understand that the ISP which ...
6
votes
1answer
354 views

Should SPF records provided by ISPs contain “all” at the end?

This seems obvious or something I just don't understand. I want to build SPF records for my clients. Most of the email providers provide an SPF record that I can "include" in mine, but they all ...
5
votes
2answers
4k views

How to redirect all mail from one domain to another in Postfix?

I have two forms of the same domain name, one being a common misspelling of the other, let's say tedswidgets.com and tedswigets.com. I'd like to redirect all mail for <someone>@tedswigets.com to ...
5
votes
7answers
2k views

Receive email alerts from Linux file server

GOAL: Get a text file on my file server into my gmail inbox. The file server is running Ubuntu Server 8.04 I currently SSH into it from time to time and to check logs, SMART stats for hard drives, ...
4
votes
1answer
894 views

Why is SPF being validated against my mail server's IP instead of sender's IP?

I have a mail server "example.com" which forwards all emails with recipient "me@example.com" to "me@gmail.com". My mail server runs Postfix and it uses the virtual_alias_maps mechanism to perform the ...
4
votes
1answer
849 views

Moving mail server to google apps

I just recently moved one of my Mail server (Exim+dovecot) to google apps thinking it would be a good idea. I am interested to hear what the serverfault community think about it, and mostly weight the ...
3
votes
2answers
852 views

Is the 10-DNS-lookup limit in the SPF spec typically enforced?

My understanding is that the SPF spec specifies an email receiver shouldn't have to do more than 10 DNS lookups in order to gather all the allowed IPs for a sender. So if an SPF record has ...
3
votes
4answers
4k views

Create Exchange 2003 server side rule without logging in as user

I need to set up server side rules (auto-replies for users who have left etc), and having to login as each user and open Outlook is a serious PITA. Also any time that I have to create any rules for ...
3
votes
9answers
6k views

Reducing the Exchange 2003 database size

Our company is running Exchange 2003 on Server 2003. Our primary exchange store file (priv1.edb) keeps growing and is now at over 45GB. If I add up the size of the mailboxes in that store I get less ...
3
votes
2answers
2k views

Sendmail Configuration to not deliver mail to local machine

I have sendmail up and running on an Ubuntu 8.04 machine. It can send mail correctly to all but the domain to which it is a part. How do I configure it to not send to itself for email addresses on ...
2
votes
1answer
2k views

Outlook 2010 exchange setup prompts for username@domain.local rather than email@domain.com

We use a hosted exchange service. When users want to set up Outlook 2010 to access their account, they open Outlook and run through the configuration steps. Autodiscover is enabled, and in the ...
2
votes
4answers
782 views

How can I route a SMTP message by FROM domain (not To, CC, or BCC)

I'm handling email for many different companies. Each company needs me to route all outbound email through a specific SMTP relay based on From address. What software configuration or technology ...
2
votes
1answer
271 views

2 separate postfix instances and confusion with IP's in received field of mail message

i have a problem with my 2 postfix instances. 2 separate IP's and coressponding domain names are setup on networking, they are working fine. I want second mail message (below) to have Received: from ...
2
votes
1answer
3k views

how can i disable outbound mail in postfix?

i want to be able to send mail to someuser@localhost but not allow any mail to go out to the outside world from anyone to anyone. i've seen multiple entries about how to filter or restrict outgoing ...
2
votes
1answer
2k views

Mailman cannot relay e-mails to non-local domains

My e-mail server runs Debian with postfix, dovecot, amavis, mailman, with postfixadmin in a virtual domain setup. All works fine, except for mailman which is not able to relay e-mails to non-local ...
2
votes
2answers
5k views

Postfix auto create Maildir

I've been beating my head against a wall for a while now on this one. Basically, here is the rundown: Our MX record points to a frontend SMTP server, which contains aliases for actually routing the ...
2
votes
4answers
220 views

Does sending e-mail in the name of customers increase the risk of being marked as spammer?

We are developing a SaaS website application that lets users send invoices to their clients. Ideally, these e-mails should appear to be originating from our customers, so the sender e-mail address ...
2
votes
3answers
1k views

Bulk email advice

I need to send email campaigns for my site. There are services like mailchimp but I want to send my own. Do you know any good VPS providers for sending bulk emails?. What are the issues (such as ...
2
votes
6answers
6k views

Cannot send email to Hotmail or MSN addresses [duplicate]

I am running into a problem at work where end users are unable to email Hotmail or MSN email addresses. We are running an Exchange 2007 server and the message itself is in HTML and contains no ...
1
vote
1answer
3k views

Postfix unable to create lock file, permission denied

I thought I had my postfix configuration all set up on my Amazon Ubuntu server but I guess not. I'm trying to set up an admin email account for 3 virtually hosted Apache websites. Here's my postfix ...
1
vote
1answer
2k views

Remove exim local username

How can i remove the local username in the mail headers with exim4 running on debian 6? Received: from root by host.domain.com with local (Exim 4.72) (envelope-from <reply@domain.com>) id ...
1
vote
3answers
2k views

How can I forward to a specific MTA based on email address?

How can I forward incoming messages to a specific MTA based on the username portion of the recipient's email address? I would prefer linux-based software, but Windows would work too. Background: Our ...
1
vote
2answers
1k views

E-Mail Bounce Management

we want to improve our mailing lists by handling all the bounces we get. As I saw there are different approaches. One checks the badmail folder in IIS mailroot folder. Others check a email account ...
1
vote
3answers
14k views

How do I set up SMTP on Windows Server 2003 to forward all emails to a given address?

I'm setting up an internal SMTP server to handle software tests which involve the sending of emails. I want to configure the server so that any emails sent to myinternaldoamin.com get relayed (is ...
0
votes
3answers
2k views

postfix: catch outgoing mail and redirect

I'm trying to configure my postfix so all mail that goes through that has tld dev would be redirected to a root user, here is my config files: [alexus@wcmisdlin02 postfix]$ tail -1 main.cf ...