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

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1answer
60 views

postfix log difference between to and orig_to

I have this log entry: 2015-01-14T09:26:39.448011+00:00 mx01 postfix/error[29736]: 5F8E810015D: to=, orig_to=, relay=none, delay=0.09, delays=0.05/0.03/0/0.01, dsn=5.0.0, status=bounced ...
0
votes
1answer
596 views

Windows Server 2012 R2 IIS SMTP Server Will Not Send Emails

I have an existing SMTP server on our network that is used to send emails from a variety of printers, applications, etc... I have installed the IIS SMTP Server on a new Windows Server 2012 R2 server ...
0
votes
0answers
45 views

Dovecot Virtual domain/passwd-file login issue

I used this walk through http://wiki2.dovecot.org/HowTo/VirtualUserFlatFilesPostfix but there is still an issue not allowing me to login. /var/log/dovecot.log Jan 13 10:25:49 imap-login: Info: ...
1
vote
1answer
52 views

How to configure postfix to replace the name of the sender to a configured one

I have postfix installed on my machine. I also use the generic maps to overwrite the email address from ubuntu to admin@example.com: /etc/postfix/generic ubuntu admin@example.com With this ...
-3
votes
1answer
68 views

Hacked server or someone is email spoofing [closed]

I will like to know if this is possible if so how? Or is it someone who has access to the email and sending emails via my domain name! I have viewed the source of the email everything seems to be ...
0
votes
1answer
62 views

Outbound mail queue lifetime standard

Description: I am trying to setup an email server with qmail and postfix as a MTAs. I am using postfix to handle my outbound mail flow traffic. Problem: I have set postfix maximal_queue_lifetime ...
0
votes
1answer
66 views

Catch all emails and pipe them all to a script with postfix

I realize this question was asked and answer before. Here's what I have done. Created a catchall address and user. Here is my /etc/postfix/virtual file. @example.com catchall Added it to main.cf. ...
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votes
1answer
161 views

Configuring Postfix relay gmail but why get tatus=deferred (SASL authentication failed; cannot authenticate to server smtp.gmail.com[? [duplicate]

Here is the story, I would like to use POSTFIX relayhost config to send mails to gmail. I use 2-step Authentication and change and double check password and username. everything looks fine in ...
0
votes
1answer
47 views

Reliable/robust method of ripping attachments from a POP/IMAP/Exchange mailbox

I'm looking for some fresh ideas after a bit of a google and would love your opinion: I have an email address hosted in exchange that will receive attachments on a regular basis. I would like a ...
1
vote
1answer
166 views

Postfix → Dovecot LMTP: User does not exist: uid@domain

I am trying to have Postfix deliver local mails via Dovecot's LMTP (among other things to replace procmail with sieve). Up to now, I've been using mailbox_command = procmail - a "$EXTENSION", ...
5
votes
2answers
64 views

Strange non-delivery behavior with Office 365 Hosted Exchange

This is such an odd issue it's difficult to describe, so please bear with me. I have a client (kirby@jibberish.com) who has purchased Hosted Exchange services from Rackspace. He has no problems ...
0
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0answers
29 views

Centos Qmail Detect source of internal spam

Our server seems to be spamming various other sites on the same server. I have tried various tips provided on this site and others to locate the source. At the moment, I have a script adding a line to ...
1
vote
1answer
27 views

Speed up queue processing in courier

I'm using the Courier mail server 0.68.2 on Debian Linux. I recently had a typo in my .mailfilter file, which caused the incoming messages to stay in the queue and not getting delivered into my ...
0
votes
1answer
53 views

configuring .mailrc for multiple Maildir users

In a CentOS 7 server with postfix and mailx, my ~/.mailrc file contains: set MAIL=/root/Maildir set folder=mail This enables mail from the root user's Maildir to be reviewed when the root user ...
2
votes
3answers
152 views

Sendmail and nslookup resolution problems

On my Ubuntu server I've been trying to get the PHP mail() function to work by installing sendmail (I also have postfix installed but I gave up on it). However, when I try to send mail it gets queued ...
0
votes
0answers
17 views

“Reverse” traffic routing with Google Apps + web host?

I'm a very experienced web designer with only minimal experience with web traffic routing. I'm also a hosting reseller who got bitten by the Great HostGator Crash of 2014, and for one of my hosting ...
2
votes
1answer
263 views

cannot find postfix/mailx email in maildir, why not?

In a CentOS 7 development machine, I have configured postfix to allow emails to be traded between localhost addresses. Mailx is also installed. I am able to send email, and the log files indicate ...
0
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0answers
33 views

Exim4 using Gmail as SmartHost can't show own e-mail address

I'm using one gmail account as the Smart Host, and it is successful to send email from my own email address to another address. But when the email is received, the sender is the gmail account, not my ...
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votes
1answer
57 views

Secure cloud to internal Mail setup using UUCP or something more modern

Some of our Linux servers are going to be moved out into a cloud. But the servers need to be able to email our users internally and are required to use our domain name as sender. The server cannot ...
1
vote
1answer
72 views

Block sender after sending to n non-existent email addresses

I have a domain that I use for my email. There are a couple of actual email addresses there, and everything else goes to a catchall. I use the catchall so I can create email addresses on-the-fly, like ...
1
vote
2answers
408 views

Postfix - Dovecot - Can Send Emails But Wont Receive - NOQUEUE - Relay Access Denied

I have set up a mail server on ubuntu. Ive checked ports are open and I've double checked all config files, checking with every google search result I could find. Most of the similar posts have more ...
1
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1answer
20 views

Add an alias in postfixadmin with smtp access

I want to create a second identity support@mydomain which I want to send emails from. My mailbox is info@mydomain, so receiving emails should still go into this same info@mydomain mailbox. In my ...
0
votes
3answers
39 views

Exim usage getting higher and I have nothing that sends emails

This is my exim usage What makes it odd is that exim4 mail server service is STOPPED Also none of my sites is actually sending any emails. (This is on a VPS) How I can find what is sending emails ...
0
votes
1answer
264 views

Asterisk - Send voicemail to email as client SMTP address

I'm able to setup Elastix (Asterisk) to send email voicemail attachments without any issue. But I'm trying to email them to a particular external address and it seems to be rejecting the emails as ...
2
votes
2answers
65 views

Bizarre behavior of e-mailed reports (text files) via Task Scheduler

I’m still pretty new to powershell and practical implementations of it… but I created a script to monitor disk health and have some very bizarre results on 2012 R2. Wondering if anyone has seen the ...
4
votes
1answer
117 views

Load multiple email accounts to mobiles from IT desk

My organisation has many users (in the hundreds) with many email addresses that they can read (often as many as 10 per user) and can send from (for arguments sake, lets say half of those that they can ...
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votes
2answers
112 views

I can't recive emails and all outgoing emails go to spam folder [closed]

I recently bought a VPS server at OVH.com to host the web of one of our business and I'm having problems to correctly configure the DNS to be able to send and recive emails. Right now i can't send ...
7
votes
1answer
297 views

GMail bouncing mail sent over IPv6, IPv4 working

I have trouble sending email to GMail addresses using IPv6 from my domain camgirltools.net If IPv4 is used, everything works as intended, the mail is delivered. When using IPv6 to send mail to GMail ...
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votes
1answer
96 views

Server is trying to send out spam [duplicate]

My email server is attempting to send out a great deal of spam. I'm using Postfix & Dovecot. I'm trying to diagnose the problem and figure out how this is being sent. My guess right now is that ...
3
votes
1answer
184 views

Postfix with Dovecot: local and virtual users

I just finished setting up a Postfix SMTP and Dovecot IMAP/POP3 server. It works perfectly fine for virtual users both sending and receiving, but I need to do the following: Besides virtual users ...
1
vote
2answers
159 views

Sending automatic mail on ssh-login fails

I'm trying to let my server send me automatically an email on ssh-login. What I've done: Created a login-notify.sh file (user root, group root, chmod 755) and placed it inside /etc/ssh/ #!/bin/sh ...
1
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0answers
143 views

mail command no longer reads from /var/spool/mail/root [closed]

Until half an hour ago mail command worked as expected. Now it says no mail for root. But I can still see and read my mail in /var/spool/mail/root. I don't believe I've changed any settings. I'm ...
0
votes
2answers
91 views

Emails never arrive at recipient but spam tests show no problems

I am running a WHMCS hosting system for a small number of private clients. For a few of them they never seem to receive the invoice emails I send out. I have ran the emails through a number of tests ...
1
vote
1answer
989 views

450 4.7.1 Client host rejected: cannot find your hostname

I have a Postfix/Dovecot email server which fails to deliver emails to some addresses. Here's an example of what is says: <xxxxx@board.com.ua>: host mail.da.net.ua[91.213.154.4] said: 450 4.7.1 ...
1
vote
1answer
161 views

Postfix DSN code explanation

Since few days ago I was unable to receive automatic emals sent from my PHP application. When I use Terminal to send an email to my @gmail address, everything works. When I try to send it to my ...
5
votes
1answer
47 views

Is Exchange 2010 compliant with RFC 3848

I have looked up Exchange 2010 Support for RFC Standards but do not see RFC 3848 amongst the supported standards. I do see RFC 4954 listed, which 'recommends use of RFC 3848 transmission types', ...
2
votes
2answers
57 views

Order emails from online shop not delivered due to SPF errors

I have my domain served by two servers with different IP addresses: one for main website and another for online shop. When a customer places an order, among other things, an email is being sent to an ...
3
votes
1answer
167 views

Postfix SMTP relay server

I use gmail to receive e-mails both from my gmail address and my own domain, but gmail no longer allows you to send e-mails from your own domain name unless you provide your own SMTP server to send ...
2
votes
1answer
71 views

Multiple MX records pointing to multiple servers for a single domain

Is it possible to have multiple MX records pointing to multiple mail servers for a single domain? Must all mail accounts be identical on each of those servers, or is it possible to have ...
5
votes
2answers
122 views

Perfect Forward Secrecy (PFS) for mail servers

Perfect Forward Secrecy is an important enhancement to SSL/TLS communications, helping prevent captured SSL traffic from being decrypted even if the attacker has the private key. It's easy enough to ...
7
votes
2answers
207 views

How widely supported is forced TLS on inbound SMTP connections?

I run an MTA consisting of the standard Postfix, SpamAssassin, ClamAV, SPF/DKIM checks etc. This MTA is used for inbound email only, doesn't host any accounts and forwards any mail that passes said ...
1
vote
0answers
215 views

PHP mail() function - “from” name overwritten by Exchange Server

I originally posted this on stack overflow but was told it might be better placed here on Serverfault. I am trying to send a very simple email from a php script ...
1
vote
1answer
102 views

How do I find the mailbox name for an exchange 2010 account so I can connect using mapi

I was redirected here from Stack Overflow, so my apologies if this happens to be off topic. I have an issue at the moment where I am trying to set up a connection between my exchange account and a ...
12
votes
4answers
1k views

Is there any way to see if the mail sent by my server was received by the recipient server?

I've sent an important email that the recipient claims it wasn't received by them. They say that they asked their IT team to see if the email was received in their server. According to them the email ...
1
vote
0answers
74 views

Exim mail not signing DKIM. Don't find whats wrong. (detailed description of steps taken)

I'd like to setup my fresh server (ubuntu) for hosting my www.bolleboos.be website and enable sending of email from my php scripts. So... I installed apache, php, mysql, ... and for the mail exim4 ...
2
votes
1answer
91 views

SPF issue with SpamAssassin

I have an internal management app for a small company, written in Python and running on a Linode VPS, with which users can send occasional emails to their customers. The emails are quite ...
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votes
1answer
111 views

Can't login to dovecot using gmail as an email client

I've used this installation configure-email-server-using-postfix-dovecot When I try to use gmail as the email client (connecting to my server through port 993) I get this error Unable to establish ...
0
votes
1answer
26 views

Sending bulk / single emails from a single domain [duplicate]

Let me explain our situation: We have a web application that uses subdomains for each customer instance: customer1.example.com customer2.example.com Every instance can have over 500 users, which ...
0
votes
1answer
253 views

Postfix 'Too many hops' bounce back

When trying to send test mail my server gives me a 'too many hops' bounce back Error 554 5.4.0 Error: too many hops (in reply to end of DATA command) main.cf # See ...
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votes
1answer
87 views

Postfix Refused on 587

Postfix is refusing connection on port 587 when delivering mail. Here are my config files: main.cf # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: ...