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

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SPF Record — fighting spoofing email [duplicate]

We are getting email's from email addresses that are from old employees and the addresses have been deleted. This is spoofing, right? Example getting emails from Doe1@domain.com but Doe1 email has ...
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1answer
18 views

locate mail queue on apache/debian

If I execute mailq I get a long list of queued emails. And I would like to remove all. But: - the superpost command does not work (postfix not installed?) - I read that I can delete manualy in ...
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28 views

Preemptively prevent down time and email issues

First of all, I apologize if this questions seems too generic. I searched this site and a few others and really did not get the answers I was looking for. Since migrating to a new virtual ...
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0answers
10 views

Configure Mail.app with exchange without sharing [on hold]

I want to configure an exchange account on a Macbook. But Apple sets it up as an "Internet account" and sets that up on every mac associated with that apple id. Is it possible to configure it only on ...
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0answers
37 views

Mail being sent as root on Ubuntu 14.04

I'm really struggling with this. I'm trying to set up this server to send mail using Gmail's SMTP. Google keeps bouncing the messages, saying that that Authentication is required: ...
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1answer
16 views

Restore Zimbra Mail Server from Server that crashed

I had a Zimbra installation which crashed due to Hard drive failure. The Zimbra was version 5. My backup was not good and so I did a fresh install and now I have managed to get the /opt/zimbra folder ...
2
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1answer
46 views

Does postfix reject spoofed senders?

Is there a reliable way to reject incoming mails with a spoofed e-mail address? What kind of checks does postfix run normally on incoming mails? does postfix check the reverse dns by default? does ...
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0answers
12 views

Email Service or CRM [on hold]

I am creating a process for a client who is a chapel. They have people who sign up to receive notifications of a death anniversary. I exported a CSV from the db, imported it into Mailchimp and I was ...
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29 views

Sendmail Failing to Forward Locally Addressed Mail to Exchange Server

When a customer places an order via our (Magento CE 1.8.1.0) website, a copy of said order is supposed to be BCC'd to our sales manager. I say supposed because this was a working feature before the ...
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1answer
31 views

Postfix mails are being queued

i'm building a local dns and mail server for a school project. It does not have to go online. Now I configured the dns with a mail server and I can dig the domainname, and search it with nslookup in ...
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0answers
27 views

How to send email from home ip when the email server isn't a designated outbound mail server allocated to BT Retail customers [on hold]

I can receive email, but when I try to send an email from my home office via our work email server (which I am admin of) I get the following reply: Your message did not reach some or all of the ...
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1answer
14 views

Server side Exchange rule predicated on recipent address

I was wondering if it was possible to have a server side rule that moved mail based on the recipient address (for example mail sent to name+folder1@myemail.com so I can set a rule to move it into a ...
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1answer
28 views

Crontab not working to send email [on hold]

I have CentOs 6.5 running on a VPS Host. I installed crontab and email using the below commands yum install vixie-cron service start crond chkconfig crond --levels 235 on yum install sendmail ...
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1answer
51 views

defer (111): Connection refused when trying to send mail

I am getting desperate for answers. The problem is simple, some email messages are getting stuck in our queue and hitting their retry limits, which ultimately end up in a never end deliverable bounce ...
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1answer
29 views

Mail remove by postfix Centos 6.5 [closed]

I use Postfix for sending local mails over another relay (gmx). But the gmx-Servers block my Mails with 550-Requested action not taken: mailbox unavailable 550 invalid DNS A/AAAA resource record. What ...
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1answer
42 views

Issue with receiving emails via Dovecot/Postfix

I'm trying to set up roundcube on my server which seems to be working fine. I have gone through all of the steps and it allows me to send outgoing emails perfectly fine (tested that with yahoo), ...
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1answer
28 views

Problems saving encrypted emails from Outlook into Document Management System

We use a commercially available Document Management System (DMS) which integrates with Microsoft Outlook 2010. This allows users to save important emails in the DMS so that their colleagues have ...
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0answers
25 views

DKIM errors in an nontransparent system

We have a client who has their mail hosted using a local exchange and POP3 connector's to their head office, and we only have access up to the POP3 connectors. This client hasn't been receiving all ...
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1answer
59 views

cannot connect to postfix with a mail client

I have been trying to setup MX in my server and was able to get the IMAP part working under SSL using Dovecot, however I can't get the SMTP part working using Dovecot as the SASL Authentication. When ...
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1answer
58 views

What happens inbetween SMTP and POP3?

I understand SMTP, and to a lesser degree POP3, but I feel like I'm missing a large chunk inbetween. I see this image on a Microsoft page: and I feel like what I'm missing is the "Internet" part. ...
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0answers
10 views

reject mail with attachment and show a message instead

I'm new in term of linux environment and I really want to know if my problem have a solution or not. So, I have the horde groupware installed, and the users could send email normally, but I want to ...
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1answer
19 views

RDBMS mailbox store for MDA/LDA [closed]

I am looking for a RDBMS mailbox store solution, as an alternative to "mbox", "maildir", etc., used by Procmail, Dovecot LDA, etc.
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0answers
19 views

Crond stopped sending e-mails for no apparent reason [duplicate]

I have a cron job that I want to run just once a day (executes a rake task), but while I'm testing it I have it set to run every 5 minutes. It was running perfectly fine this morning and sending me ...
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1answer
22 views

Using Google Business Email simultaneously with other mail server for one domain

My partner is having some problems with delivering and receiving emails. They asked me to check Google Business Email, if it can provide a solution. My question is: Is it possible to split users into ...
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1answer
51 views

Postfix acting as spam server. Looks like it's part of a botnet, spam messages being sent to customers [duplicate]

Let me first start out by saying I am no mail guru. If you need more info to help me just let me know. This week the mail server has been having all sorts of strange issues. It has been duplicating ...
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2answers
29 views

Restrict certain hosted sites from sending mail on Ubuntu LAMP server

I host several live sites, and several staging sites on one server that's running Ubuntu 14.04. Most of the sites are wordpress sites, and are using the php mail() function or the PHPMailer class to ...
3
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1answer
121 views

Turn off password expiration after user changes password (Linux)

One of my e-mail servers uses unix system accounts for user login. Because I didn't set up any complex password policies (our users, including management staff, don't like complicated passwords), one ...
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1answer
37 views

Rainloop: arbitrary sender address? [closed]

I just set up my mailserver (Postfix as SMTP and Dovecot for IMAP) and as web frontend I use Rainloop - which also works very well! My setup is that I have only very few real users (actualy at the ...
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1answer
30 views

SPF failure with gmail

I'm trying to properly set up DKIM, SPF, and DMARC so emails sent from my server are less likely to be seen as spam. I got my first DMARC report and I'm little confused by this part: ...
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0answers
14 views

DSPAM not being called on some emails with Postfix

I have Postfix/DSPAM set up, and it works properly almost all of the time. Most messages have DSPAM headers. However, every day it seems like a little bit of spam gets through without DSPAM headers, ...
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1answer
24 views

How to forward specific local addresses using .forward file

I have an account that recieves email using multiple addresses. I want to redirect some addresses to a different mailbox using the .forward file in my home directory, based on the local part. So say I ...
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1answer
55 views

Using SMTP Relay on a Exim Server in VPS for Multiple Domains

I am moving my email behind a dynamic IP, and I will need to SMTP relay outbound email in order to avoid spam lists. My domain is hosted through a BlueHost VPS running EXIM. I am wondering what I ...
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2answers
40 views

Mapi or Imap for small company with slow internet connection and outlook

I am helping a small company that currently have an external hosted MAPI solution in Outlook 2010-2013. It runs on 6-7 computers and for all users their outlook takes between 15-60 seconds to start, ...
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1answer
33 views

Limit Emails Per Hour Per IP [closed]

Anyone knows a script or software for CentOS and Windows that can be installed onto dedicated servers with no control panel limiting emails per hour per IP or full block. Thanks in advanced!
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1answer
40 views

How do I recieve incoming mail on an email address in Linux [closed]

Background: My department does a lot of communication using email to ask and answer questions. We have an internal StackOverflow type board set up but it's a headache for them to log in to the VPN and ...
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votes
1answer
54 views

Postfix sends as hostname.domain.com instead of domain.com

I've been trying to set up a debian mail server running postfix, but when I try to send mail via mail example@outlook.com the recipient sees the sender as hostname.domain.com. The hostname it sends ...
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1answer
19 views

imapsync some mails are not transferred

Im using this code: imapsync --buffersize 8192000 --nosyncacls --subscribe --syncinternaldate --noauthmd5 --host1 old.server --user1 old.user --password1 123456 --host2 localhost --user2 ...
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1answer
50 views

Ubuntu 14.04 Postfix Access denied

Sorry to write here I'm really using it as a last resort. I have recently got my hands on a dedicated server. I'm not good with linux (not at all), but I wanted to set up a full server (Web, mail, ...
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1answer
47 views

Configuring dynamic e-mail aliases such as “user+keyword”

My Ubuntu server is using Exim4/Courier for emails and I'd like to know if it's possible to create dynamic email aliases for receiving emails like this: client+client1name@domain.com ...
2
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1answer
24 views

Send mail with priority from console

How can I send mail from the console marked with "priority high" flag? Currently I'm using this syntax: echo "message content" | mail -s "subject" user@example.com I don't see any switches for ...
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0answers
10 views

Office Outlook 2010 Professional Plus: problems with the “Add New Account” wizard [migrated]

I want to install Microsoft Office 2010. The installation went without errors, but there are problems with the Outlook. When I open the application Outlook, it begins to load for a long time. It is ...
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votes
1answer
37 views

my crontab doesn't send mails anymore

Before saturday, mailing after crontab executions were working but from now on, it doesn't work at all, but the config didn't changed. Operating system : Debian 7.5 I tried using PHP the mail ...
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2answers
34 views

Receiving mail in a python process on an aws instance

I'm using a Python smptd server on an AWS instance. It's listening on localhost, port 25. I can send mail to it through a Python smtp client on the same instance. I have an elastic IP associated with ...
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1answer
29 views

“relay access denied” after changing domain A record

I'm experiencing issues with email, specificially "Relay Access Denied" errors after changing my A record for my apps domain name. It was previously setup like: Host a manages dns (mydomain.com in ...
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votes
1answer
54 views

How does an MX relay work, as in, how is my SMTP server supposed to use it? [closed]

I'm trying to set up a Postfix server (any other software would be ok for me as well). I don't have a static IP, and that can apparently be quite a problem for e-mail purposes: I managed to "send" ...
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votes
1answer
30 views

At what point should I dedicate a server for SMTP [closed]

I currently have a 2GB RAM windows server 2012 which is has IIS and SMTP installed on there. Now I seen alot of people leave SMTP out on the webserver and buy a server just dedicated to handle the ...
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1answer
46 views

How to setup Postfix with Opendkim to automatically sign PHP emails?

I've found that: submitted emails are signed properly (ie those sent with MUA's like Outlook and Thunderbird) command-line sent emails are signed properly emails sent with PHP, in particular case ...
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1answer
15 views

SpamAssassin doesn't filter forwarded mails

I am forwarding emails from an external email account to an account on my own server. SpamAssassin works fine if I just receive mail normally. But all mail thats being forwarded from my external mail ...
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1answer
43 views

What could have changed email headers?

I'm sending email programmatically with the following headers: From: rm-noreply@mycompany.com Reply-To: rm-noreply@mycompany.com However, recipients sees them differently From: "Some Name" ...
0
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1answer
29 views

Remove X-SA-Exim Headers from out going emails

I am using EXIM4 on Ubuntu 12.04 with Spamassassin for sending emails. Any emails will be relayed through Amazon SES service. But I want to hide the bellow headers in outgoing emails. ...