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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20
votes
4answers
3k views

Best Practices for preventing you from looking like a spammer [duplicate]

I'd like to feel more confident setting up mail for my clients with regards to false positives. Here's what I know: SPF records are good, but not every spam filter service/software (SFSS) uses ...
4
votes
5answers
2k views

How do I move my website to a new server without interruption to email?

I have a corporate website on a server that also hosts all our email. I have no idea how diligent all the employees have been about backing up their email / leaving old messages on the server, etc. In ...
5
votes
2answers
599 views

How do I get Postfix to deliver ALL mail to a custom script?

I am trying to configure postfix so that ALL mail that arrives (to any domain) is piped into a shell script that I have. I have tried several things, including setting mailbox_command = ...
14
votes
6answers
3k views

How difficult is it to setup a mailserver?

I want a secure mail solution, as I am looking to move away from Google and other parties looking into my private data. How much of a PITA is it to setup my own mailserver? Should I go for an ...
12
votes
4answers
24k views

Mail server for Windows 2008

I'm going to get a Windows 2008 dedicated server sometime soon. I'm going to have my website hosted on it, so, I also want to run a mail server on the same machine to receive any mail sent to the ...
19
votes
4answers
11k views

Why Does hotmail still reject my emails?

I have a very strange problem with my emails being marked as spam by hotmail. I just have configured Postfix + Dovecot on my server and all works perfectly. I can Send/Receive emails. I only have ...
5
votes
2answers
11k views

How to collect bounces in postfix

This is related to this question: http://serverfault.com/questions/20550/ways-to-get-a-bounceback-report-for-my-newsletter-application Let's say I'm generating email addresses like this when I send ...
11
votes
4answers
6k views

Do SPF Records For Primary Domain apply to subdomains?

I have a quick question regarding SPF records: Do they need to be present for all subdomains? Lets say that I have a TXT record with SPF info for domain.com Let's also say that I have a seperate ...
0
votes
3answers
2k views

Monitoring postfix mail throughput

I have a number of CentOS machines running postfix and sendmail. Is there some thing that I can use to monitor the current message throughput of a mail server from its logs? I'd particularly would ...
2
votes
1answer
3k views

How do I use OpenDKIM with multiple domain names on a single server?

How do I use OpenDKIM with multiple domain names on a single server? I own 3 domain names, and I have a single server that's running postfix for sending email. How do I use OpenDKIM? Can I use the ...
2
votes
3answers
1k views

Email postfix marked as spam by google

I searched about this question, found some few answers but no idea how to fix, the problem is that I realy dumb with all this! I configured the postfix and done everything how the install how to ...
0
votes
1answer
1k views

How can we support all domains in postfix smtp server?

I have installed and configured postfix on our server. Postfix config file has relay_domain parameter which contains the list of domain names which postfix will support. Is there a way by which we ...
3
votes
6answers
662 views

Looking for Exchange alternatives for email, calendar and directory serivices [closed]

I am look into what LDAP is and how it works in regards to a Mail Client. My question is how does LDAP work? I understand that LDAP is: A directory set of objects with attributes organized in a ...
2
votes
2answers
707 views

What is the best method for mirroring two email accounts on disparate platforms?

We have enterprise users that want to try out an online mail provider (such as GMail or MS Exchange Online) for a trial period, but would also like their local mail (Lotus Notes) to remain synched ...
1
vote
1answer
754 views

Error 550 Mail Relay Message Could Not Be Sent

I'm not sure if this is the right area to ask, but here we go. I have a client who has a couple websites on a Windows server with MailEnable as the mail manager. Any emails being sent from the server ...
1
vote
1answer
2k views

Exim mail server slow on sending through SMTP

It takes about 30 seconds for the server to send me the banner, but initial connection is done instantly only happens when I am at the office, from home it works fine at the office I have a rRns ...
1
vote
2answers
2k views

Recommended MTA for Windows Server

I need an mail server running on my web server that will just route email through other email servers. Exchange requires Active Directories which just complicates an otherwise simple setup. What are ...
1
vote
2answers
863 views

Some users cannot connect to Exchange Server or Outlook Web Access

In our network, some users cannot connect to either Exchange Server 2007 or Outlook Web Access while others are able to connect to both. On one computer, the error occurred after the user ran the AVG ...
0
votes
1answer
292 views

How to check what features mail server supports?

just curious if there any tool that I can just give a mail server address/ip to and that would give me all features that mail server supports. Like: does it support imap/pop3? Does it support ...
-7
votes
2answers
524 views

Mail server not sending or receiving after removal from barracuda blacklist to white list [duplicate]

Possible Duplicate: mail loops back to myself | postfix Mail server not sending or receiving after removal from barracuda blacklist to white list. I've checked against black lists and the ...
17
votes
12answers
11k views

Which anti spam DNS blacklists should used?

i want to protect my mailserver with dns blacklists for fighting the spam. there a so many blacklists out there. currently i use: ix.dnsbl.manitu.net cbl.abuseat.org bl.spamcop.net ...
14
votes
1answer
18k views

What ports to open for mail server?

I have just finished setting up a Postfix mail server on a linux (ubuntu) platform. I have it sending and receiving email and it is not an open relay. It also supports secure smtp and imap. Now this ...
34
votes
4answers
3k views

Is greylisting still an efficient method for preventing spam?

I've used greylisting on my servers for many years, but I don't know how effective it is nowadays. Is it still good for fighting spam in 2012? Or is the typical spammer MTA capable of resending ...
8
votes
5answers
1k views

Setting up an Email Server on Ubuntu

What are some of the Dos and Don't to setting up an email server on Ubuntu? Are there any gotcha's?
5
votes
3answers
1k views

Setting up a postfix email server

When I set up an email server using postfix on ubuntu server, how do I make sure that it won't be an open relay??
3
votes
3answers
3k views

Ec2: Setup mail to send emails

Can someone teach me how to configure a centos instance to send mails. My intention is to send mails from a bash script based on some signals and alerts to a build user. I don’t intend to use it ...
3
votes
3answers
3k views

Forward incoming mail on Linux server?

I am trying to set up mail forwarding on a new server of mine. For example, I want emailaddress@mydomain.com to forward all email sent to it to, say, otheremail@gmail.com. I do not need/want to be ...
2
votes
3answers
4k views

Best Open Source Mail Server for Windows [closed]

I'm looking for a mail transfer agent that is free, preferably open source that can run on Windows natively. I've used Postfix before, but Postfix doesn't really run on non-Unix machine.
4
votes
3answers
7k 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 ...
2
votes
2answers
491 views

What's your suggested mail server configuration for a FreeBSD server?

What would be your suggestion if installing a FreeBSD 7 (7.2, actually) email server? I am interested in: SMTP agent Imap/Pop backend Authentication (OS users, OpenLDAP) Anti-Spam server side tools ...
1
vote
2answers
200 views

How to let users administer their own e-mail accounts?

I work for a small ISP that hosts e-mail for some 6,000 users, and we're in the process of upgrading to a new Debian mail server. One of the many requests we get from our users is to be able to change ...
1
vote
3answers
5k views

How to fix mail server SSL?

Our mail server was originally set up using self-created certificates. However when those expired, and I tried to recreate them, the whole thing just blew up. Since I know it will be important, we are ...
0
votes
6answers
568 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 ...
4
votes
2answers
3k views

Basic exim configuration - redirect all out-bound emails to local address

I have exim running on a development server. It's currently not able to deliver mail anywhere other than locally. This is fine though - I don't want to be able to accidentally spam our entire ...
3
votes
1answer
677 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 ...
3
votes
1answer
5k 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 ...
3
votes
3answers
188 views

Mail server - DNS question

I was wondering if it is possible to point 2 domains to one mail server. Currently the mail server is on "examplemail.com" we would like to eventually move this to "mail.exampleserver.com". The ...
3
votes
1answer
966 views

nslookup works but ping doesn't

I have a server running Debian etch. It runs [qmail] and sends mail. Mail server works correct but the strange thing is from server itself it can't resolve hostnames. I can use nslookup and dig ...
2
votes
3answers
942 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 ...
1
vote
2answers
755 views

Amazon SES vs EC2 Smtp server

We have an existing smtp environment setup in an EC2 instance which is used to send Transactional emails like password reset. Now we have a requirement to send System emails to a large user base in ...
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
1answer
2k 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 ...
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 ...
0
votes
1answer
374 views

Can't send emails through sendmail, error occured

I have sendmail MTA and I use pear:Mail class to send mails through remote sendmail server. Everything was fine till yesterday. Probably nothing changes was made in configs. At maillog I can see: ...
0
votes
2answers
1k views

Block mails with local from-addresses from unauthenticated senders using courier-esmtpd

We run a small courier mail server (courier-esmtpd). It is configured to accept mail from authenticated clients without recipient restrictions and mail from everywhere to local addresses: ...
3
votes
2answers
2k views

Can't get SmarterMail to work on fresh Windows 2008 server

Really having trouble with this, I've been through all the guides I can find and get stuck, using latest version of Smartermail 8 on Windows 2008 with IIS7.5. I have it setup so I can SEND emails ...
3
votes
5answers
410 views

Email Delivery To University Mail Servers (.edu emails)

I'm running an app at www.universitytutor.com which lets people find tutors. Most of the tutors are college students. We send out a follow up email 2 weeks after someone contacts a tutor to ask how ...
2
votes
2answers
173 views

(Postfix + Dovecot) All emails to @aol.com being deferred

I'm running a dovecot/postfix mail server on debian and am having some issues. Everything is working fine except all emails to @aol.com are being deferred. The error code gave me: "The Reverse DNS ...
2
votes
1answer
208 views

How to prevent your mail gateways from being blocked due to spam being sent via mail forwarding

We allow users to forward their e-mail to external addresses. From time to time, our mail gateway appliances' anti-spam engine computes a large spam campaign targeted to our users as a ...
2
votes
2answers
742 views

Sendmail disregarding mailertable

I have an out-of-box package-based installation of Sendmail on a CentOS 5.4 machine and am attempting to configure it to act as the public-facing relay server for various internal servers that handle ...