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

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3
votes
6answers
4k views

Hotmail and Live.com rejecting all emails [duplicate]

I have been having problems sending emails from my server to hotmail.com and live.com email addresses. I have read other posts on serverfault but they have not been helpful. Here is the error message. ...
-1
votes
1answer
44 views

My server mail going junk in hotmail and yahoo [duplicate]

All my server mails going to spam in hotmail and yahoo. Here is my full mail source. Can any one please help me to sort out this issue ? ...
3
votes
1answer
41 views

How can one configure exim still to reject invalid recipients after an earlier ACL returned “discard”?

For the reasons set out in my earlier question Originating (non-critical) emails from a "less-trusted" host, it unfortunately seems that we must run an SMTP server for the sole purpose of accepting ...
15
votes
8answers
63k views

How to send email with my CentOS server?

I just built a modest home server using CentOS 5.5. I want the server to be able to send emails to my Gmail account or other email accounts for various things like cron jobs. Also it would be nice to ...
-2
votes
1answer
27 views

Postfix Email Server Manipulation

I have one postfix mail server (postfix-2.10.1-6.el7.x86_64) under CentOS7. Now, our App Department is using it to send sms'es via email. To: 123456789@domain.tld To: 987654321@domain.tld To: ...
4
votes
2answers
1k 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 ...
1
vote
1answer
35 views

Originating (non-critical) emails from a “less-trusted” host

Background We have a webapp running on webapp.example.com that (amongst other things) sends messages by email from time to time. These messages are non-critical: whilst we would like to make a best ...
1
vote
2answers
73 views

How to send a large number of emails to a dated list of receipients

One of my clients was to send an email to ~100,000 recipients. The client is a state organization, the emails are not promotional, the recipients are all members of the organization and they are sure ...
-2
votes
1answer
22 views

Configure postfix to run filter only with selected mail else all other mail pass without being filtered

I am running postfix and I'm using ubuntu 14.04. I created php script and i injected it into postfix to filter incoming mail. All run as I wish. But Now I want my postfix to run filter only with ...
1
vote
0answers
68 views

Emails keep going to Gmail spam folder - DKIM, SPF, are set up - Very perplexing [duplicate]

Note: This is NOT a duplicate question, there are no questions that address the very specific details of headers as far as whether the inclusion of multiple DKIM entries will result in landing in the ...
-4
votes
1answer
37 views

DNS MX Record resolves fine from my servers, but is not cached/returned? [closed]

So, my DNS server is returning the MX records just fine: DNS: avuna.org for type# 15 returned 0000046D61696C056176756E61036F7267 Has the proper records: mail.avuna.org A 198.167.143.175 ...
2
votes
2answers
72 views

Fail to trigger my php script when mail received by my Postfix

I am running Postfix mail on ubuntu 14.04.1. I want to "trigger a PHP script when Postfix server receives a mail" After investigation and the help of many tuto, . I have configured "postfix" & ...
1
vote
1answer
3k views

Exchange server 2010 stopped receiving incoming emails

We have an Exchange Server 2010 V 14.01.438 running on Window Server 2008 R2 Enterprise, which stopped receiving incoming emails about three hours ago, however everything we checked appears to be in ...
0
votes
0answers
8 views

outlook calendar send email on update

We have a shared mailbox that is used as a holiday/meetings calendar in outlook for all employees (this was set up before I joined, else wise I would have set up just a shared calendar). All Users ...
-1
votes
2answers
20 views

Forward non-hosted .de email addresses to hosted .com

I have a domain with associated web and email hosting package ( let me call it mydomain.com ). I also have a second domain ( mydomain.de ), this one doesn't have email hosting. I would like to make ...
1
vote
3answers
1k views

forward all mail on a specified domain to script

I run a disposable e-mail service that accepts all incoming mail and forwards it to a PHP script that stores it in a database for people to view. Before now, I have been on shared hosting with cPanel, ...
2
votes
1answer
65 views

What I have to modify to have SELinux allow nginx to act as an IMAP/POP3 proxy?

By default nginx under CentOS 7 will fail to start if used as an IMAP/POP proxy. This is because of SELinux. How can SELinux's configuration be altered, without disabling its protections, to allow ...
2
votes
1answer
25 views

Benign Email Headers

On our server, we have two separate email systems: if it's a long queue of recipients, then we store it in a queue to be sent in a cron. If it's less than X number of recipients, then it sends ...
1
vote
1answer
101 views

Postfix - relay locally generated mail but accept mail incoming from GApps for the same domain

I know the way to disable all local delivery is to remove the domain from "mydestination", which will cause all mail to be relayed through whatever relay I setup. But I want postfix to accept all mail ...
1
vote
1answer
529 views

Forcing a sender name on outgoing mail

I'm attempting to implement a consistent standard across my company's email accounts as the business grows and we also become involved with other market sectors (for which we have alternative accounts ...
7
votes
4answers
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
4answers
1k views

Free calendar server? [closed]

I am looking for free calendar server who can authenticate to LDAP server. I want our users to use thunderbird lightning with calendar server. We have mail server with devcot and squirlmail for ...
3
votes
3answers
11k views

Exchange: How can you use an SMTP address other than your default reply-to from Outlook?

Our users have mutliple SMTP addresses in Exchange. We set one as their default reply-to. From Outlook (for e.g., I'm using 2010 64 bit in Windows 7), in the e-mail compose window, there's a dropdown ...
0
votes
4answers
2k views

When Exchange receives a message, send notification to another address

I have an internal Exchange 2010 server that receives no outside email and sends no email outside. I'd like to send a notification email to an outside email when a user receives a message on the ...
0
votes
1answer
18 views

Change OSSEC alert emails “From” header

I'd like to know how to change the name in the "From" header for emails sent by OSSEC. I couldn't find any information about that. Alerts I receive from my server are quite well organized. And OSSEC ...
1
vote
2answers
2k views

When cron is completed How to get email notification and log in a file (both)

I am a Newbie to linux. I'm trying to figure out things. Can someone kindly help me how to combine these two commands? (1) Normally cron can results can be directed to a log file by editing crontab ...
0
votes
1answer
147 views

Have main account email :fail: in Exim [closed]

The main user account for a web server (domain@domain.com) is not used for email at all, but receives a lot of spam. I'd like these messages to just :fail:. I've tried adding a .forward file for the ...
1
vote
1answer
113 views

Forwarding email with postfix via AWS SES

I have a server with postfix MTA installed that accepts mail for my domain, hereinafter @example.com. I need to setup forwarding for certain emails@example.com to other emails . e.g. @gmail.com and ...
2
votes
4answers
7k views

Cannot recieve incoming email on recently transferred domain - all MX records updated and have proper status

Domain Name: digiwhirl.com Edition: Free edition Affected Username/s: N/A Issue Description: Cannot recieve incoming email on recently transferred domain - all MX records updated and have proper ...
1
vote
1answer
42 views

Configure postfix to send email only from authenticated and receive from anywhere

I`m having problem configuring postfix to receive emails from any domain but block senders for only authenticated users in localhost My main.cf is like : mydomain = domainname myhostname = ...
1
vote
1answer
527 views

how to create email addreses for directadmin users [closed]

In directadmin reseller level when I create a user they can access their inbox through squirrelmail. they can send emails but they can't receive any because there isn't any address. for example when I ...
1
vote
0answers
27 views

How to Route google apps gmail based on subject line?

I set up a bunch of routes in my new google apps system (migrating from doing inbound email with mailgun forwarding). In one case we need to forward all email with a particular subject to another ...
0
votes
1answer
27 views

Possible to setup a secondary email server with unique addresses?

It is possible to setup two email gateways such that if a record doesn't match the first server then it attempts a second server before failing to deliver? Background: Client recently switched from ...
0
votes
2answers
38 views

sendmail/exim4 two servers one is send-only

We have the following setup: One web-server on Debian with PHP on the main domain, that can send emails, but must not receive. It has exim4 installed. Let's call it example.com One mail server on ...
0
votes
1answer
48 views

How would get an email server reputation via cli or script?

I am trying to monitor email server reputation via cli or script i.e. https://www.senderbase.org/ I found a way supposedly to do it via dig, but the output appears to be very incorrect. It indicates ...
0
votes
1answer
947 views

Changing SPF (Sender Policy Framework) record for Google Apps [closed]

My boss asked me to set up Google Apps for a client and basically I have done everything including setting up MX records in DirectAdmin and re-creating the email accounts in Google Apps. I also sent ...
0
votes
1answer
839 views

Migrating email forwarding entries from DirectAdmin to Google App (Free edition) [closed]

I have a website hosted in a shared hosting account and it contains a DirectAdmin (DA) control panel. From there, I can see some email forwarding entries. I would like to migrate the email server to ...
0
votes
0answers
54 views

Major Mail Issue - SMTP Local Server Not Working

My database (MySQL), web server (IIS 8 ) AND SMTP server (IIS 6) are all on the same dedicated server (Windows Server 2012) that I'm honestly renting for a bit of system admin practice. I followed a ...
5
votes
1answer
75 views

Postfix: selecting relay host based on From: mail header rather than envelope sender

I've successfully set Postfix to relay emails via Mandrill using SASL and sender_dependent_relayhost_maps with a MySQL table so that different senders connect to Mandrill using their own Mandrill ...
0
votes
0answers
18 views

Setting up mail server that can handle multiple users for side project

I want to set up a mail server that can handle multiple users. Basically, the end application will assign each user an address, say example1@testdomain.com. The users can send emails to this address, ...
0
votes
1answer
27 views

giving AD users shared email account

I have a microsoft platform, with active directory and exchange. Normally, all AD users are assigned mailboxes associated to that userid. Our organization employs many transient personnel, who come ...
1
vote
0answers
59 views

Allow Powershell script executed on Exchange server to send mail - best practice?

I've got a single multi-role Exchange 2010 server and a need to execute a Powershell script on monthly schedule. And i really would like to send a report via email to some local company's mailbox by ...
0
votes
0answers
298 views

RDNS_NONE from spamassassin result, when it should be positive

When trying to do a spam test on mail-tester.com, SpamAssassin is giving me RDNS_NONE result. Can't quite figure out why! The result I get: -1.274 RDNS_NONE Delivered to internal network ...
0
votes
0answers
34 views

Change From name when sending emails

I have setup exim4 on Debian 7 to send emails for alerts and stuff on my server to my Gmail account. I edited /etc/email-addresses and added a line: sysadmin: sysadmin@example.com When I receive ...
9
votes
3answers
15k views

Can I create my own S/MIME certificate for email encryption?

I'm having a bit of an issue here. Bear with me as this may be a case of "not asking the right question". Background: Using Apple Mail. Want to encrypt/decrypt email but GPGMail (and apparently ...
0
votes
0answers
20 views

How to set up email transparency on an exchange server

Stripe is famous for its email transparency. I want to replicate this, and specifically I want to have email be stored in an archived manner that anyone can search. I'm not really sure how to do this ...
2
votes
1answer
2k views

Postfix: How to configure Postfix with virtual Dovecot mailboxes?

I have configured a Postfix mail server for two domains: domain1.com and domain2.com. In my configuration domain1 has both virtual users with Maildirs and aliases to forward mail to local users (eg. ...
7
votes
3answers
6k views

How to redirect all outgoing email from postfix to a single address for testing

I am setting up a testing server for a web based application that sends some email notifications. Sometimes testing is performed with real customer data, and for that reason I need to guarantee that ...
3
votes
1answer
3k views

How to reduce the Sendmail DNS timeout period

I have a problem with the sendmail DNS timeout period when trying to sent to a email address which has a DNS issue. Let's say the problematic email address is test@example.com I can see there is a ...
3
votes
2answers
1k views

What is the email SPF entry for sending from Yahoo!?

I have a client that is sending email from a Yahoo! Plus account as if from her own domain. Is there a way to set up the SPF record so that it covers all of Yahoo!'s outgoing servers? i.e., what do I ...