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

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-3
votes
0answers
14 views

Basic setup for postfix [on hold]

So I've spent about 8 hours trying to get something to work in postfix using various configurations, none of which work. I had a basic setup (1 local user to one email address) working fine so I know ...
6
votes
3answers
5k views

How to configure email autoconfiguration for a domain?

Outlook and a number of other email clients now feature autodiscovery of mail server settings and it bugs me that I don't have this set up for our domains, but I'm not sure how to do it and a quick ...
1
vote
0answers
8 views

exim4 redirect router, fallback if redirected delivery fails

I run an exim4 instance that is the primary MX for my domain and receives email from the public Internet. Mail for my users is forwarded on to other email addresses - I use the redirect router and ...
0
votes
0answers
9 views

force upstream smtp outbound through proxy

Upon inspection of emails sent outbound to external domains, the backend is revealed as being the true sender, rather than the proxy itself. When sending within the domain, from local user to another, ...
-3
votes
0answers
28 views

How to set up an email to be sent if server is sending more than 1000 mails per day [on hold]

In other servers we have an automated email that sends us an email when the server send more than 1000 emails on one day. We would like to implement the same in the current server ...
0
votes
0answers
16 views

Spamassassin: using specific DNS server for DNSBL lookups

High volume mailserver. I need 2 things operating simultaneously: local caching nameserver (BIND) rev dns server for DNSBL (SORBS) lookups The way I set it up for now is using RBLDNSD bound to ...
0
votes
0answers
11 views

Prevent email spam from vhosts

We have a server with several vhosts (with php) running. Recently one vhost was overtaken from a "hacker" which manipulated the php scripts to send email spam. Because the other email servers blocked ...
0
votes
0answers
24 views

Exchange 2010 Mail stuck in Queue - HUB Version 15 - Journaling

I have issues with my queue on my Exchange 2010 Hub Transport server. When I do a Get-Queue, I can see over 1000 emails on queue and the next hop is Hub Version 15! I don't have a clue what a Hub ...
-1
votes
0answers
24 views

automate updates with a bash script and cron [migrated]

I'm trying to automatize the updates of debian system, without making upgrades. Then i'll send an e-mail to me, everytime there is an upgrade available. I've tryied to do it with cron-apt, but i ...
0
votes
0answers
71 views

Postfix: Bounce checking. Emails are piped to php but prevents emails from being sent and received properly [closed]

As I was working, I made a guide of what I was doing, for future use. I have been trying to get this to work for some time and I have gotten the emails to pass through the script. The problem all ...
3
votes
1answer
34 views

Is there a legitimate reason to use an encoded word in any header other than the subject?

Encoded words allow non-US-ASCII characters to be encoded as US-ASCII and thus placed into email headers. http://en.wikipedia.org/wiki/MIME#Encoded-Word Encoded words are often used in the Subject ...
1
vote
4answers
5k views

How do I get my server off the ivmSIP/24 blacklist?

I checked my server IP using this tool: http://www.mxtoolbox.com/SuperTool.aspx It's come up on the ivmSIP/24 list. What can I do to get my IP removed from this list? I have SPF records set to ...
1
vote
2answers
2k views

One email user keeps disconnecting from our exchange server

I have one user who keeps reporting that Outlook keeps disconnecting from our email server. All other users are fine. Our email server is running Exchange 2010 and the client is running Outlook 2003. ...
0
votes
1answer
24 views

How do I simply forward email to an external address using Postfix aliases?

I don't want to deal with postfix virtual. I want to use aliases (/etc/aliases) Is there a way to do this?
-2
votes
0answers
15 views

421 4.3.0 collect: Cannot write … (bfcommit, uid=0, gid=110): No such file or directory [on hold]

There are an issue: i want to use swiftmailer but when i try then the system says: # php yiic.php sendnotifications exception 'Swift_TransportException' with message 'Expected response code 250 ...
0
votes
1answer
12 views

Multiple internal mail addresses while having only one public address

I have the following setup(hardware): One root server, out in the internet with a Domain example.com pointing to this server. An intranet, inside a company, containing several PCs. Currently the mail ...
-2
votes
3answers
97 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 ...
1
vote
1answer
761 views

Exim Prevent Mail Sent by Relay

Currently it appears that somehow someone is using my server to send spam as I'm seeing 100's of rejection emails from other email services (such as gmail) saying the message could not be delivered ...
1
vote
1answer
660 views

Setting 'From' header for cron email using msmtp

I've got msmtp setup on Ubuntu 10.10 so that cron can send me emails. That works like a champ, for the most part. However, emails coming to my gmail account show up as coming from (unknown sender), ...
-1
votes
1answer
28 views

Multiple mail servers for a single domain [closed]

Running a "DNS scan" to make sure my DNS zones are setup "correctly" led to the suggestion by the tool to run more than one mail server for redundancy. It got me thinking about how one would implement ...
0
votes
1answer
20 views

postfix multiple recipients for the one address

I'm running postfix on centos and in my /etc/postfix/address I have email@domain.com username which works and now I want two people to be on that list now. I've tried email@domain.com username, ...
-4
votes
0answers
29 views

How can I setup my mail server to accept +extension to addresses? [closed]

For example, in Gmail I can create an email address to sort and filter out my email as follows: For my bank: email+bank@domain.com For my spam: email+spam@domain.com For my todos: ...
1
vote
1answer
635 views

Restricting mailboxes to accept messages from specific external senders

Here's the scenario: I have an MS Exchange distribution list called SMT. Currently, msExchRequireAuthToSendTo is set to true, so this list will not accept emails from external senders. We recently ...
0
votes
2answers
30 views

Efficient way to get Postfix talk to SpamAssassin

Traditional methods of doing this on SA wiki talk about shell scripts as content filters. Well that's an additional fork syscall on every email and the volume that will flow through the machine is ...
0
votes
1answer
773 views

Emails not sending from outlook / OWA - Not even hitting the mail queue in exchange

We are having an issue this morning where we can receive external emails but cannot send internal or external ones from Outlook or OWA. If I use: Send-MailMessage –From <sender@domain.com> –To ...
2
votes
3answers
2k views

Outlook 2007 login prompt repeat prompt and exchange 2010

It seems when I first setup a new user in Outlook 2007, a login prompt comes up and asks for credentials. After the account is setup, the login prompt will repeatedly prompt throughout the day and is ...
1
vote
1answer
1k views

Tracking down source of duplicate email messages in Outlook / Exchange environment

I have a few users, who are also Blackberry users, that occasionally have duplicate emails generated from their "mailbox". I put mailbox in quotes because I'm not exactly sure where the duplicates ...
0
votes
1answer
14 views

Using DKIM in my server for multiple domains (websites)

As I couldn't find this exact tutorial in Stack, I share my findings with al of you. I always get things solved thanks to this comunity. Thanks! Original question: I've read the tutorial posted by ...
0
votes
4answers
1k views

Forwarding mail to alias in Postfix [on hold]

Currently I have setup Slicehost as my relayhost for mail. Postfix is my MTA. This is how I have configured forwarding: virtual_alias_maps = hash:/etc/postfix/virtual my virtual file has: ...
3
votes
1answer
3k views

“Outlook must be online or connected to complete this action” windows XP, outlook 2007, connect to exchange using HTTP

Hey, I can't connect to an exchange server using windows XP and outlook 2007, using the "connect anywhere over HTTP" process, it has been working until recently and the user reports no recent changes ...
3
votes
1answer
74 views

Email account terminology

I know how to perform basic through to fairly advanced tasks in on-premises and cloud-based Exchange systems but I still sometimes get confused when trying to use the terminology. Here's what I think ...
4
votes
1answer
71 views

Removing Exchange 2003 without deleting AD email attribute

So I've got a client that has an ancient Exchange 2003 server that I've taken out of commission and replaced with a *nix solution. Dovecot/Postfix both query the email attribute in AD to verify ...
3
votes
1answer
611 views

Move exchange mailboxes cross forest

Having a hard time migrating user mailboxes across 2 forests. I've set up ADMT 3.2, No dns issues and fully route-able between the domains etc. Have come to migrate user mailboxes and the exchange ...
0
votes
1answer
30 views

Setting MX entries for Failover [closed]

I have a GoDaddy domain as "example.com". I wanted to have my own DNS server for the sub domain secure.example.com. So I added a "A" record "NS" pointing to my IP and a NS record "Secure" pointed to ...
0
votes
0answers
5 views

How to add identity in dkimproxy?

DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=simpel-mailclient.com; h= from:to:subject:message-id:date; s=k1; bh=5eALQvUpOrW373J9iUFeZW p3Nag=; ...
-2
votes
1answer
32 views

Removing non-0 priority MX records

I have MX records set up as such: 0: domain.com (runs of the webhost, really bad) 1: GOOGLE ... google I somehow accidentally added the Google Apps mx servers, btu didn't change the priority 0 ...
1
vote
1answer
52 views

I can´t send emails server with Postfix in Debian [closed]

im trying to sent mail through php, in a Debian server with postfix, when i run the following script in the server, the code tells me that the email was sent successfully, This is my code: <?php ...
0
votes
1answer
656 views

MailEnable error on windows server 2008 r2 : Reason: Remote SMTP Server Returned: 550 5.7.1 Unable to relay for info@example.com

I am going crazy about this error message. for some of the domains, I am receiving this error message; Reason: Remote SMTP Server Returned: 550 5.7.1 Unable to relay for info@example.com I am ...
4
votes
1answer
924 views

OSX 10.6 integration into NIS/netgroup/automount infrastructure

I have an existing infrastructure where accounts are maintained under NIS (yp) with no local unix accounts. Also, all the standard maps including hosts, mail aliases, netgroups, etc...are maintained ...
0
votes
1answer
34 views

S/MIME certificate to minimize email bounce

I have a website hosted in a vps that sends informative emails to my clientes, maybe 20-40 emails per day. Since few weeks ago some sent emails are bouncing with the following error: This message ...
2
votes
1answer
1k views

Can't make Dovecot communicate with Postfix using SASL (warning: SASL: Connect to private/auth failed: No such file or directory)

Solved. I will leave this as a reference to other people, as I have seen this error reported often enough on line. I had to change the path smtpd_sasl_path = private/auth in my ...
1
vote
2answers
50 views

If I use postfix for mail relay, so is myhostname / mydestination important?

I use postfix to relay mail to 3rd party SMTP and never sent out email directly, and of course I never receive email. So If I set myhostname / mydestination to sth like fake.mydomain.com, which ...
0
votes
1answer
37 views

hMailServer forwarding and distribution lists with SPF checking

I have installed and configured hMailServer, primarily to allow me to create a distribution list for a private organisation, and some email address aliases. This is so that members of the ...
0
votes
1answer
646 views

Under what conditions will sendmail try to immediately resend a message instead of waiting for the standard requeue interval?

CentOS 5.8 | Sendmail 8.14.4 I used to think that if SendMail experienced a temporary (400-class) error during delivery, it would place the message in a deferred queue (e.g. /var/spool/mqueue) and ...
3
votes
3answers
450 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 ...
1
vote
1answer
1k 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 ...
11
votes
3answers
990 views

E-mail lifecycle after it's been sent

I was testing my mail server's STARTTLS configuration when I stumbled onto this page : https://starttls.info/about. The following excerpt puzzles me: When you send an email through your outgoing ...
1
vote
2answers
2k views

Dovecot user lookup fails for email addresses

I have Dovecot v2.0.11 installed on a FreeBSD server and the user lookups for incoming email addresses are failing, but lookups for system users is successful. Dovecot is setup to use system users, ...
1
vote
1answer
48 views

Spf passes or fails depending on receiver address

I have postfix with dovecot set up on Ubuntu 13.10. I send emails via a node application (using email-templates). If I send an email from noreply@mydomain.com to myacccount@gmail.com (email 1), the ...
41
votes
6answers
6k views

Fighting Spam - What can I do as an: Email Administrator, Domain Owner, or User?

This is a Canonical Question about Fighting Spam. Also related: How to stop people from using my domain to send spam? What are SPF records, and how do I configure them? There are ...