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

learn more… | top users | synonyms (1)

1
vote
0answers
47 views

postfix loopback email and exchange issues

I am fairly new to plesk and postfix so please bear with me. I have plesk setup on a server with multiple domains already living and breathing, including email which all works fine. My issue comes in ...
0
votes
1answer
989 views

MailEnable error on windows server 2008 r2 : Reason: Remote SMTP Server Returned: 550 5.7.1 Unable to relay for info@example.com

I am going crazy about this error message. for some of the domains, I am receiving this error message; Reason: Remote SMTP Server Returned: 550 5.7.1 Unable to relay for info@example.com I am ...
2
votes
3answers
3k views

Outlook 2007 login prompt repeat prompt and exchange 2010

It seems when I first setup a new user in Outlook 2007, a login prompt comes up and asks for credentials. After the account is setup, the login prompt will repeatedly prompt throughout the day and is ...
3
votes
5answers
2k views

How to check, if IPs in your network are blacklisted?

I would like actively monitor, if any of my network IPs are on blacklists. Here I would like to collect links to instructions, how to sync blacklists, which allows that.
3
votes
2answers
54 views

Postfix virtual domain mapping for a Linux username containing @

I could not make Postfix work with Linux usernames containing @ Postfix has virtual domain map, in /etc/postfix/virtual It looks something like this: domain.ru domain.ru ...
-2
votes
0answers
6 views

Altel all outgoing email to add return-path to it (Qmail or Postfix)

Is there a way (config option or program, script, etc) that can filter all outgoing email in order to add a return-path to each message sent from that server ? I would need it for eider Qmail or ...
0
votes
0answers
7 views

Sendmail and Postfix: Email Masquerading Issues

I'm trying to do email masquerading but it isn't working. Would having these entry prevent the email server from masquerading emails? # On our Sendmail server define(`SMART_HOST', ...
62
votes
6answers
22k views

Fighting Spam - What can I do as an: Email Administrator, Domain Owner, or User?

This is a Canonical Question about Fighting Spam. Also related: How to stop people from using my domain to send spam? What are SPF records, and how do I configure them? There are ...
-2
votes
1answer
20 views

Ubuntu Server; Email from PHP stopped working

I currently have a VPS server running Ubuntu. I have used this server for a while and have was using the built in mail function for PHP. Now for reason, emails are no longer sent. According to PHP, ...
0
votes
0answers
14 views

IPSConfig - simple username for an email account [on hold]

I'm using ISPConfig for my private web and email vServer. The email accounts use as username the entire email address like user@example.com. Now i would like to use gmail-like plus-addressing / ...
19
votes
4answers
2k views

What are the best methods for catching snowshoe spam?

I'm using Smartermail for my small mailserver. We've been having a problem lately of getting waves of snowshoe spam that follow the same pattern. They come in batches of 3 or 4 at a time. The ...
0
votes
1answer
964 views

SSL Cert error after migrating to hosted exchange service

OLD SETUP SBS 2011 w/ Exchange and all clients running Office 2010 (using rpc/http as many were laptops) NEW SETUP All mailboxes and accounts moved to hosted Exchange. Local Exchange services ...
2
votes
2answers
3k views

postfix problem sending email “RCPT reject localhost not listed”

i am hacing a hard time getting postfix to send emails. this is the mail.log entry: Jun 30 18:27:46 vm21 postfix/smtpd[15682]: warning: ::1: address not listed for hostname localhost Jun 30 ...
-1
votes
0answers
8 views

show all webserver email on my website ? How It is possible if possible what are doing (we use php script) [on hold]

show all webserver email on my website ? How It is possible if possible what are doing (we use php script). We crate a crm for email we wont if user send email by gmail id than this email show on ...
-1
votes
0answers
19 views

Multiple regex statements to match [on hold]

How can I manage email headers to reject all emails from specific email domain with specific filetypes? For example. If @gmail.com and filetype is .exe then reject. if /name=.*.exe/ if ...
3
votes
3answers
11k views

How can I set Out-Of-Office in a shared mailbox

I would want to set the out-of-office automatic response to all emails that arrive to our info@domain.com. currently in the Outlook, I only have one mailbox (the user mailbox) but it has 2 shared ...
14
votes
6answers
12k views

Do SPF Records For Primary Domain apply to subdomains?

I have a quick question regarding SPF records: Do they need to be present for all subdomains? Lets say that I have a TXT record with SPF info for domain.com Let's also say that I have a seperate ...
-1
votes
0answers
11 views

Sending email from a local test virtualbox when SPF and DKIM are setup

I'm trying to setup discourse and so I thought I'd start on a virtualbox and eventually migrate to a digital ocean droplet. It's setup, it's running, but outgoing mail is not working. I've got SPF ...
-3
votes
0answers
14 views

How to change the hostname of postfix and still have all emails show up in IMAP? [on hold]

I recently had to manually restore a server after a bad crash. I recreated the mailaccounts with Plesk and copied the mailboxes with all the emails back into their original location. I had to do the ...
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
11 views

How can I set a default email domain name on debian?

I have exim4 configured on my server as an email forwarder (for example sending an email to admin@mydomain.com will result in the email being forwarded to my personal gmail email account). This ...
0
votes
3answers
1k views

Domino always server fails to send SMTP email at first attempt

In our logs, we find the below: Router: No messages transferred to fakedomain.com (host mx.fakedomain.com) via SMTP: The server is not responding. The server may be down or you may be experiencing ...
3
votes
3answers
12k 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 ...
1
vote
2answers
207 views

mx server: multiple domains on one ip

I'm just a bit confused about the correct DNS setup for hosting multiple domains on a single server with one ip. For example the mail server (domain/reverse: example.com) should host 3 domains: ...
0
votes
1answer
28 views

Emails from my server are often being blocked as spam [duplicate]

When I check any of mailbox from my server with a tool like this one: https://www.port25.com/support/authentication-center/email-verification/ I get: SPF check: pass DomainKeys check: ...
0
votes
1answer
44 views

Zimbra 8.6 sends some mail into black hole

I have a Zimbra installation running on Centos 6.6: Release 8.6.0_GA_1153.RHEL6_64_20141215151155 RHEL6_64 FOSS edition. I have one account on the server that receives mail forwarded from another ...
0
votes
1answer
22 views

how to remove duplicate emails with scripting in Zimbra

Is there any way to delete duplicate emails from Zimbra accounts (locally hosted, licensed) with a script? I have had to export/import thousands of emails for a user, from one Zimbra server to ...
4
votes
0answers
28 views

How Does Low Volume Affect (esp. live.com) Email Deliverability?

I've been sending emails for years with out any serious reputational shocks, but with low IP volumes (no bulk mail or automated transactional email), even with multiple Domain names. My Gmail ...
1
vote
2answers
305 views

Exchange/outlook: default from address for a mailbox with multiple addresses

We have a shared exchange mailbox with multiple SMTP addresses; foo@company.com, bar@company.com, baz@company.com and so on. When a user replies to a mail in this mailbox we want the from: field to ...
2
votes
3answers
659 views

Exchange / Outlook Managing multiple smtp addresses

In our company some of our employee's have multiple email addresses on multiple domains. Now we have tried multiple setup to manage this situation, only to find that there is no ideal one. We are ...
-3
votes
0answers
19 views

How can I open my email server to open registration? [closed]

So I'm curious on how to open my webmail server to the public as an experiment. I have a standard mail stack, with Postfix, Squirrelmail, SpamAssassin, Dovecot and the like. I don't intend to run a ...
0
votes
1answer
3k views

Bounce message from gsmtp - weird message path

Please consider the following email headers from a message that was returned to the original sender. The multipart bounce message also contains the transcript (clear text + HTML) of the correspondence ...
0
votes
1answer
969 views

cyrus-imap SSL error

We have recently launched a site and a few days ago the mail.log file started to grow incredibly quickly (2gb per day). I've just had a look at log file and the lines below below are repeated ...
-4
votes
0answers
22 views

Managing Email for Clients [closed]

Before you downvote, please provide some positive feedback if this is ill-posted. I manage several emails for clients (or pay for a service for them)...but as I get more, I need to look at how I'm ...
0
votes
0answers
11 views

Exchange 2010 Retention

I have set up Retention tags n Policy for all users in my organization to 3 years after which mails are moved to the online-archive. Now some of the users have a folder called 'imp-emails' which they ...
3
votes
1answer
4k views

Couldn't drop privileges: User is missing UID (see mail_uid setting)

I'm hoping I can use some help. I'm configuring dovecot_ldap, but I can't seem to be able to get dovecot to authenticate the ldap user. Below is my config and log info: hosts = 192.168.128.45:3268 ...
0
votes
0answers
19 views

mailjet with brimir (open source Ruby project) on debian doesn't send mail

I tired of searching a tip to be able to send mails with mailjet on my debian. I configured a dashboard for tickets (Brimir, Ruby open source plateform) Here is the link : ...
6
votes
3answers
2k views

Linux email server for sending email from multiple IP addresses

I'm trying to setup an email server so it has the capability to send email from multiple IP addresses, so our marketing system can send email from multiple domains, while keeping the reverse DNS ...
4
votes
2answers
4k views

Sendmail Configuration for Exchange Server

i need help for sendmail configuration in our linux machine. Here the things: I want to send email to outside by using our exchange server as the mail relay.But when sending the email through the ...
3
votes
3answers
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 ...
0
votes
2answers
42 views

smtp blues - external emails works, internal does not

I have 3 domains hosted on a remote server, but I am using other postfix server for SMTP only. So, I have two servers: mail.domain1.com - remote mail server, storing mailboxes and used for IMAP ...
0
votes
1answer
29 views

MX Record Failover When Primary ISP down

I need some help to configure ISP Fail-over. I have configured a Zimbra Mail Server on CentOS. It is working fine. We have 2 ISP connections and created 2 MX records for both ISP's like bellow ...
-1
votes
2answers
31 views

Mail Server for a subdomain on a different Server?

I'm currently assigned the administration of a server that is accessed through a subdomain of another (not administrating example.com but y.example.com), and assigned to implement a web application on ...
1
vote
2answers
893 views

Postfix - Block email from non-existent local addresses

My question is very similar to this one, but for postfix. We keep getting emails from addresses like "accounting@example.com" delivered to our actual "@example.com" addresses. From my google ...
0
votes
1answer
12 views

How to configure exim4 to orelay email from a specific IP?

I am attempting to set up an SMTP relay server, using exim4. However, I have only one IP that I want to be allowed to send email through my server. Is this done using iptables or some configuration ...
-2
votes
0answers
20 views

iRedMail/Postfix/Dovecot/Ubuntu - I can receive, reply to emails, but i can not send

I am using Ubuntu 14.04 and on fresh linux installation i have installed iRedMail. As you know it comes with Roundcube and IredAdmin. I have created several emails with different domain all of them ...
-2
votes
1answer
13 views

Changing from local server to web host but keeping mail in local server

I am trying to shift my client's website from their local server to a web host, they pointed domain to my web host ip address (A record), however, it does not work. I understand that if I were to ...
2
votes
0answers
31 views

Server “shows signs of being infected” - how to resolve email blacklisting

I help manage 178.32.51.182 and noticed we were getting bounced emails because of several blacklists those are: CBL FABELSOURCES Spamhaus ZEN so I checked the first blacklist here: ...
0
votes
0answers
13 views

How to add a custom header to email sent with sSMTP?

For security purpose I need to add a custom header to each email depending on the sending virtual host. We are using sSMTP MTA and I think that the best way to this is to create a small script and ...
4
votes
2answers
125 views

Is there a way to make encryption default per contact in Thunderbird?

I administer several computers that have Thunderbird installed. I know Thunderbird has an option to require all email to be encrypted. However, I would like a way to allow unencrypted email ...