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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51 views

Nagios 3.5 can't send notification email despite nagios logs ok / centos6

I spent hours trying to make nagios send email notification. my contact configuration is quite simple : I juste have one : nagiosadmin, and he is the default contact. In /var/log/nagios.log, nagios ...
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42 views

postfix smarthost mixed with usage of external mailserver

In a SOHO setup I've got a mailserver with fetchmail, dovecot, roundcube and postfix running. Fetchmail fetches the mails from the isp, postfix and dovecot handle the rest. Postifx sends emails in a ...
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496 views

Postfix: Reject forged sender/from address

currently, i find myself in the situation where once Postfix 2.11 has been configured to properly reject outbound forged emails addresses when sender login mismatches and also when sender address does ...
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75 views

Postfix configuration with DKIM to send mail from multiple domains

My current setup is a Postfix installation configured with DKIM on a server with hostname prod01.example.com The server is used to send out mail on the form webshop@example.com, ...
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53 views

Where do I add DKIM details to amavisd.conf on Ubuntu?

I'm trying to add a DKIM key to an additional domain on my Ubuntu mail server, I am trying to add the following block of code to the amavisd.conf file $enable_dkim_verification = 1; ...
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52 views

Debian exim4 rate limits

I try to limit on exim4 the outgoing mails per day per domain, i found this: acl_check_ratelimit: accept authenticated = * endpass ratelimit = 40 / 1d / per_rcpt / ...
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99 views

Postfix performance and how to increase my throughput?

What I've read so far: Postfix Tunning Postfix Bottle Neck Analisys The Book of Postfix (chapter 22) I have similar specs to this guy but I'm only able to send about ~1300 emails/hour What I've ...
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22 views

Mail server can't connect to database

While trying to set up a new Mail server, I installed and configured dovecot, postfix, postfixadmin, squirrelmail, clamav. I imported a database from another (old) mail server to the new one. Postfix ...
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111 views

Exchange 2013 Mail flow rule using RegEx

We're trying to implement a rule on certain mailboxes that it shouldn't accept an email without a subject. I found documentation from Microsoft on exchange 2010 to Configure a Transport Rule for ...
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129 views

How to use ViMBAdmin with Courier (Mail Server) Postfix / MySQL

i've setup and got courier and Postfix working but ran into a issue when setting up ViMBAdmin. Courier cannot read the passwords from the database i believe, anyone know how to audit the daemon to ...
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157 views

Postfix mail stuck in queue indefinitly

I've been trying to set up a simple mailserver for myself using the following guide : Guide. I've added my domain via Postfixadmin and setup a info@mydomain.org mailbox. But when I try to send to mail ...
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89 views

Configure postfix to limit total number of connections from any and all SMTP clients in a given time period?

I am trying to figure how to configure Postfix to operate within the requirements given by Spamhaus for free usage of their DNSBLs (http://www.spamhaus.org/organization/dnsblusage/). They specify that ...
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230 views

Benefits of using a subdomain for sending email?

Assume I own the domain name, example.org. I am creating a setup where I receive email sent to me@example.org using Google Apps. The MX records for example.org already point to Google's servers and it ...
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34 views

Postfix: Keeps delivering the same E-Mail queue

Recently, my ISP had some trouble with their HDD's and it happend to be that the drive in my dedicated server went up smoke. No big deal, their pushed the latest backup on a new HDD, alright. But, ...
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32 views

Partial mail sync for multi continent mail server expansion?

I am wondering if there is solution (we currently use Dovecot but another product is ok too), that would allow to setup a second Imap server (or proxy) that would work efficiently over slow links. An ...
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57 views

Exim message rewriting on system alias router

What's the best method for rewriting the To: fields only when the system aliases router matches? Our mail is delivered correctly but the To: fields are misleading.
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261 views

Outlook periodically/frequently prompts for login credentials after migration to new mail server

We are experiencing a problem after migrating to a new mail server where users that connect to the mail server through Outlook (using IMAP) get prompted periodically/frequently for their username and ...
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597 views

Gmail trying to access hMailServer via POP3 Error

I just setup a new mail server called hMailServer on a Windows server after switching from Merak. Most users setup access through Gmail to download their messages via POP3. One user, who has a few ...
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73 views

cgpav not scanning in CommuniGate Pro

I have setup cgpav and cgpsa. Spamassassin works fine - the cgpav filter seems to run, cgpro log files just show OK when it receives an email with a known virus (eicar test virus), however, if run ...
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67 views

Communigate: writing rules

We have Communigate on our mail server. Recently we moved to Dr.Web antivirus + antispam. When it checks mail for spam it writes spam score in 'X-Spam-Level: ', where number of '' signifies the spam ...
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662 views

How to force emails through reseller dedicated IP using WHM/cPanel

I followed this tutorial: http://docs.cpanel.net/twiki/bin/view/AllDocumentation/WHMDocs/EximDifferentIps To specify "which IP addresses specific domains on your server should send mail with Exim". ...
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172 views

Problem with Postfix mailinglist

I have a problem setting up a mailinglist on postfix. I have a working virtual alias table (/etc/postfix/virtual). I added the following line: progen@domain.xy user1@example.com, user2@example.net, ...
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15 views

Move to Office 365 from other e-mail provider

I have DNS access for my domain(s) and we currently use an external mailserver (of our (website)hostingcompany). So we do not have (admin)access to it. I don't know what kind of software it runs, but ...
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26 views

Replying to an email from a domain email alias

We have a multi-store set up in nopCommerce 3.20 with SSL enabled. Our environment info as follows, Windows 2012 R2 VPS Server. .Net 4.5, SQL Server 2012 Express Multi SSL in Same IP using ...
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34 views

Server sometimes doesn't receives e-mail, with error 451

One of my customers tried to send me an e-mail with his e-mail address that I didn't received. He received a Delivery Status Notification (Delay). I only received the message 2 days later In the ...
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94 views

send email from ubuntu: msmtp VS esmtp VS ssmtp (and nullmailer)

What are the main differences between these 3 packages that have a very similar name? msmtp VS esmtp VS ssmtp (and eventually nullmailer) Thanks
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21 views

HMailServer recepient list is broken to 25

I have created an rule to block emails which contains more than 55 recipients. When I added a rule with a run function as the action, I always get the number of recipient as 25. (Eg: if there are 60 ...
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60 views

How to send emails without ending up in Junk/Spam folder

I have installed a mail server in order to send e-mails using my own domain name. I've read many articles about how not to end up in Junk folder. I have done what those articles said: Added MX ...
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28 views

spamass-milter and opendkim use tons of memory

I recently set up a mail server using postfix, dovecot, opendkim, spamassassin, and spamass-milter, and it works fine, but spamass-milter and opendkim are using lots of memory: Above: opendkim and ...
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23 views

Poor IMAP performances

I'm experiencing very poor performances with my Mail Server when executing some specific and mandatory IMAP commands. Right now when I try to run the SELECT command on a folder with 4k+ email, the ...
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27 views

Access the failing addresses within bounce_message_file in exim

We are running exim version 4.72 I'm using bounce_message_file to customize our bounce messages, like desribed in the documentation Within this bounce message template I can access various variables ...
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77 views

Centos/Postfix able to send mail but not receive it

I have set up postfix and used the mail command to test and an email was successfully sent and delivered. The email arrived in my yahoo inbox BUT the sender also recieved an email in the Maildir ...
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184 views

553-Message filtered - HELO Name issue?

I am having major issues sending from my SBS2011 machine to Message labs server-13.tower-134.messagelabs.com #553-Message filtered. Refer to the Troubleshooting page at ...
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32 views

Exchange Full Access issue

I was just hired as a System Admin for a small company. They use Exchange 2010 for their Mail Server. I've never had a permission issue like this with Exchange because I worked for a larger firm with ...
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23 views

global autoresponder google apps

We just migrate our main domain to a new one. (@olddomain.com -> @newdomain.com) Now we want that people who send emails to any account in @olddomain.com, receive automatically a message like "the ...
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163 views

exim4 - Received: from localhost ([127.0.0.1] helo=localhost.localdomain) - fix to domain name

I have debian and exim configured to send email from Ruby Project, when I send notification DKMI, SPF - passed OK, but in gmail letter tagged as SPAM. I think problem in this header Received: from ...
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16 views

How to create a mailbox on a sub-domain with Google Apps?

I would like to create a mail address (a simple mail redirect would do just fine) for foo@bar.example.com instead of foo@example.com for a system where Google Apps is in place. How could this be ...
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79 views

How to configure a dovecot cluster with non-shared storage

Dovecot has a Proxy service which allows to perform load balancing between Dovecot Backend servers. And there is a Director service which makes it easy to have temporarily user -> server mapping. ...
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61 views

migrating to new server, would like to keep sending email from existing server

Hello I'm in the process of moving my site to a new host (ie new IP). I run a social site that sends a large volume of (valid) email, and I have built up a good sending reputation with my current IP ...
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26 views

Courier custom queuetime (bounce time) for some mails

I have a customer that wants me to deliver email on their behalf. The customer wishes for our MTA (Courier) to stop attempting delivery and bounce an email after one day. I am to deliver to the ...
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10 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=; ...
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105 views

Adjust Authentication-Results header and verify DKIM reports are being send

i'm running OpenDKIM 2.9.1 through Postfix 2.11, using the following configuration. https://gist.github.com/sibok/97a8e33d5f7309b4fa1c As you can see i enabled DKIM reporting but i can't see any ...
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37 views

Amavis sending Paypal payment emails to postmaster. Are they classified as spam/virus?

Some days ago i was reading some docs about amavis and decided to fine tune its configuration. As i'm new to amavis i probably setted some statements in the wrong way so last days i've been recieving ...
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28 views

Virtual and system mailboxes - how to set passdb propperly

I've just configured email on my server. Gentoo, Postfix, Dovecot, Amavisd, ClamAV and Spamassasin I am using LMTP for delivering virtual mails, works great. I am using standard postfix deliver ...
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69 views

SASLAUTH: Temporary block on more than 5 authentication followed failures

I'm running a Postfix MTA together to SASL when it comes to authentication. Yesterday saslauthd collapsed and none of the email users could login to the mail server. What i think is probably ...
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105 views

Undeliverable SMTP email not saved to badmail folder using IIS6.0

I am testing my SMTP virtual server hosted in IIS6.0 to verify that when an email cant be delivered and cant be sent back to the sender, then I need to see a copy of the Non Deliver Report in the ...
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60 views

OpenDKIM: no MTA name match (host=myhost.mydomain.com, MTA=myhost.mydomain.com)

i'm using OpenDKIM together with Postfix MTA and while DKIM solutions is working well but in /var/log/mail.log i can see opendkim is complaining about OpenDKIM: no MTA name match ...
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488 views

Postfix: reject instead of defer type=MX: Host not found, try again

i'm looking for the postfix directive which lets me immediately reject instead of deferring the following kind of errors: Feb 12 20:03:11 we postfix/smtp[9692]: 5B8CC48DCC: to=, relay=none, ...
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23 views

Sensible approach for delegating mail delivery for a domain

Before I begin, I want to apologise for possible bending rules of this QA site, since this question does not fall under category of a specific problem that demands straight answer. It is rather a ...
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22 views

How to add new var to PERMANENTFLAGS in Mail server

My current mail server is not supporting Tag. I have found PERMANENTFLAGS is not having extra var to store those tags. I am using Axigen mail server now, I want to add extra var to PERMANENTFLAGS like ...