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

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244 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 ...
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0answers
35 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 ...
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2answers
54 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 ...
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1answer
69 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 ...
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86 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 ...
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0answers
24 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, ...
5
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1answer
133 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 ...
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1answer
35 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 ...
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105 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 ...
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1answer
70 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 ...
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23 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 ...
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3answers
122 views

Does “~all” in the middle of an SPF record signal the end of the record when it is parsed?

Our company's SPF record format is as follows: "v=spf1 include:_spf.google.com ~all a mx ip4:X.X.0.0/23 include:spf.example.com ?all" So we have an "~all" in the middle of our SPF record. On the ...
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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 ...
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2answers
125 views

Postfix Failed to Receive Email

I am trying to set up a mailing server with postfix and dovecot in ubuntu 12.04 following this guide. All seems to have worked out correctly and when I try this echo test | mail email1@example.org ...
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35 views

Disable mailboxes on Exchange 2007 while emails are being redirected to Gmail

I am trying to uninstall Exchange 2007 for a client as they have decided to use Gmail from now on. I have been going through some errors like the transport connector and the watermark and now I am ...
2
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1answer
96 views

Hotmail/Outlook dumping apparently valid emails

I've written some software that operates a non-commerical contact list for clubs, where the server sends out admin mails to the entire club. The emails are received Ok on Yahoo, gmail, and AOL, but ...
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3answers
12 views

Where, in Exchange, can rules from other sources be removed?

I have one user, out of almost 500, who has connected his Android phone to Microsoft Exchange; I've ensured that this has been done correctly, but he, at one time, set up some inbox rules from the ...
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1answer
38 views

SMTP doesn't work on distinct machine [closed]

I'm trying to setup TLS e-mail on remote machine, but it doesn't work. Trying to send e-mail on my local machine (Windows 7 x64 locale ru-ru): 16:33:18 CONNECT : Looking up host name ...
2
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1answer
35 views

Stop (most) local delivery in Postfix

I'm trying to setup a Postfix (2.11.4) configuration so that it does this: Sends out mail originating from the local server Accepts incoming mail for a single alias, which actually points to a ...
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0answers
126 views

nullmailer swaps sender and recipient

I want to send emails from my server through external mail server. So I installed nullmailer as one of simpliest MTA in Debian 7 x32. My /etc/nullmailer/remotes: smtp.example.com smtp ...
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2answers
81 views

Relay Access Denied - Postfix/Dovecot

Edit: Please, please read the answer before this whole thing, as it'll save you tons of time. Answering my issue was as simple as changing a setting with Outlook, it might be for you, as well. It had ...
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1answer
357 views

Temporary Lookup Failure - Postfix/Dovecot

Alrighty... So here's what's going on. I can sign in with Outlook to my Mail Server, but when I go to send an email, I get this error. Using SquirrelMail, I don't get any errors, sending works fine. ...
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2answers
38 views

Is it possibe to do an exclusion in an MX record? [closed]

Is it possible to exclude certain addresses or wild card addresses using an MX record?
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1answer
140 views

Ignore MX record and send mail directly to an Office365 address [closed]

I'm a bit of an amateur at this so bear with me, here's the problem: The current email provider for the company only allows a single Office365 exchange account per subscription. They do not allow ...
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2answers
76 views

Ubuntu mail command - where does it store sent mail?

I am very new to Ubuntu and have an issue where sent mail from our Ubuntu Server has been failing for a number of weeks. We are using the mail command (invoked from PHP) like so: ...
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1answer
89 views

No longer able to send e-mails from Ubuntu server to Gmail group [closed]

I have an issue where sending e-mail from our Ubuntu server to a Google Group account no longer works and results in the Google group rejecting the e-mail. (Please note that when I say Google Groups, ...
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1answer
826 views

Getting a [550 5.1.1 Recipient not found] (Can't receive email) with CloudFlare

I'm having troubles with my email account. I'm using GoDaddy's Email service and the domains that are not connected to CloudFlare are operating just fine. The problem comes in with the domains that I ...
0
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1answer
680 views

Postfix milter-reject: END-OF-MESSAGE from 4.7.1 Service unavailable - try again later

I am running postfix-2.11 version and recently i have added dkim-milter-2.8 Postfix configuration: # DKIM milter_default_action = accept smtpd_milters = inet:localhost:8892 non_smtpd_milters = ...
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1answer
70 views

DKIM syntax, DNS Server rejected [closed]

I really need help on why my DNS host keeps on rejecting this entry: default._domainkey.myschool.edu.sg IN TXT "v=DKIM1; k=rsa; p=MIGfM...hZwIDAQAB;" I added our domain based on what I have read so ...
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1answer
69 views

Automated email sent using Bash mail function gets filtered as spam by Gmail [duplicate]

I have a Bash script which is scheduled to run everyday and sends out user notification emails using a command like: mail -s "Hello World" someone@gmail.com Why is this email detected as spam by ...
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1answer
345 views

Relay Denied SMTP error from remote mail server after RCPT TO: <email@example.com>

Hi I have a problem when I want to send mail using smarthost method in exim and usage Mailgun as SMTP server for relay. this is my configuration dc_eximconfig_configtype='smarthost' ...
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1answer
80 views

Cron errors routing to external mail server instead of local

For some reason some usernames on a Solaris 10 system that have cron jobs send the cron errors to an external mail server to be routed back to the generating server which is blocked because of ...
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0answers
75 views

MDaemon - Configure shared SMTP domains

someone can help me with the configuration of Mdaemon to accept mails from Office 365 in a coexistence scenario? I'm in the process to setup coexistence from O365 to Mdaemon. No problems on Office 365 ...
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2answers
115 views

Internal SMTP server no longer delivering to Google Mail

Our corporate email is hosted on Google Apps, along with 5 domains for various products. Internally (Behind our firewall, not exposed to the internet) we have an IIS server running Microsoft ESMTP ...
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0answers
13 views

What is the correct SPF setting if I want a specific IP, hosting provider's MX, and GMail to work for sending emails coming from my domain? [duplicate]

I have never set up an SPF record, so I am trying to make sure I understand what I am doing before causing all sorts of havoc. Let's say I have a domain example.org which is being hosted by ...
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2answers
128 views

PHP Mail Delayed Shared Hosting [closed]

I'm developing a Drupal site on very generic shared LAMP hosting. My client insists on using the shared hosting company for some reason. (Is it OK to mention the hosting company?) E-mails are sent ...
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1answer
101 views

Postfix, hostname and /etc/aliases

After having dig for hours on SF/SO and googled a lot, I still can't figure out how /etc/aliases is used by postfix. I use an Amazon Linux EC2 server (kind of Centos6) My server hostname is set to ...
0
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1answer
25 views

Load balance prevent from seeing email

Some of our email are hosted with Network Solution, Yesterday we setup load balance on our WAN connection. Since we did it, our user cant log on to their web mail interface. Each time they try to log ...
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3answers
721 views

Have a valid SPF record but still can spoof my email

I have set up an SPF record for my domain, but I still can spoof email-addresses for my domain using fake email services like this one: http://deadfake.com/Send.aspx The email does arrive to my gmail ...
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0answers
36 views

Sending mail between two exim servers

My two servers are nagios1.example.com and nagios2.example.com, They are both configured with local mail and smarthost. On nagios1 in /etc/aliases root: root@nagios2.example.com On nagios2 in ...
4
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1answer
414 views

Replacing an MX record with a CNAME that doesn't match the hostname

Today we have 5 companies that all use Google for email services example1.com. 3w IN MX 10 mail.Google.com. example2.com. 3w IN MX 10 mail.Google.com. ...
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1answer
377 views

Sending email from PHP through exchange [closed]

I figured serverfault might be a better fit for this question. I'm trying to send emails with PHP mail() function. PHP returns no errors and says the email has been accepted whether it sends or not. ...
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2answers
178 views

How to block IP addresses from port 25 [closed]

PROBLEM: Users are getting 15-20 SPAM emails per hour, even with SpamAssassin set to its most aggressive settings SOLUTION: SPAM filtering services are available from companies like McAfee (Intel). ...
2
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1answer
44 views

Catch incoming email and then deliver to original recipient on sendmail

in the company I work for there are a user that is making bad use of the email, but to have evidence of what he is doing we need to intercept all the incoming email to him and all outgoing email from ...
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0answers
50 views

Exim 4.72 doesn't verify recipient

I have a problem with recipient verification. I have next configuration for acl_check_rcpt: accept hosts = : deny message = "Invalid characters in the address" domains = ...
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0answers
20 views

Is “Received: from hostname (localhost [127.0.0.1])” triggering spam filters? [duplicate]

I am running my own postfix Mail Server. All my mails are Spam filtered (at least by Gmail and Yahoo). I don't really know why they are filtered, because I have implemented SPF, DKIM and DMARC. ...
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0answers
74 views

Hotmail SMTP cache?

So this is an odd one ... Does Hotmail in anyway resolve and cache information for MX records or A records for individual email addresses? For Example: I setup a personal test bed mail server and ...
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0answers
20 views

Starting qmail-toaster: svscansvscan: warning: unable to read directory: access denied

I got such message when trying to start qmail-toaster: Starting qmail-toaster: svscansvscan: warning: unable to read directory: access denied All permissions are correct. drwxr-sr-x. 2 alias ...
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1answer
73 views

postfix apparently relay email

I have read as many documents as I could understand about tuning postfix main.cf parameters, but still get some external email relayed. Here is a typical example in /var/log/mail.log: Mar 6 06:26:13 ...
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1answer
120 views

Configuring nagios notification settings to be very frequent

I've set up a Proxmox VE Cluster with three nodes. Each nodes has a number of VMs running on it. I'm using the PVE Monitor Plugin to set up the hosts and services, which works fine. My issue is that ...