Refers to the hardware or software that make up a server dedicated to sending and receiving emails. Many popular modern email servers bundle other functionality for contacts and calendaring along email delivery.

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12 views

What's recommended software stack for a mailing web app?

I want to develop a web app where users can send and receive mail with their accounts, they will be single mails (no bulk) with attachments. First requirement is to have no limit in attachments ...
0
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1answer
22 views

Which difference between /etc/aliases and virtual_alias_maps in Postfix?

Which difference between /etc/aliases and virtual_alias_maps in Postfix and where should I put aliases from local accounts to virtual user accounts (i.e. from root to postmaster@example.com)?
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1answer
37 views

Testing a mail server

Suppose you want to test a mail server for a particular domain before going live with DNS change. For example, when you want to test an HTTP/HTTPS site you can just change your own machine's hosts ...
-1
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0answers
18 views

Default Email Sender Address

I just checked Mail Delivery Reports in WHM to find that many emails didn't deliver because some mail servers are rejecting saying the Sender address is not a valid domain. I am sure that sab sub ...
0
votes
2answers
74 views

Scalable Multi Server E-mail setup using Linux/Dovecot

One of my clients ask me to set-up a multi server, scalable email system. I can configure multiple servers to send emails. By using PHP Mysql based login script, users will be redirected to each ...
-3
votes
0answers
61 views

Deliver All Emails Sent To A Server No Matter The Domain To A Single User

I am working on a solution that requires an email server that deliver all emails no matter what domain it's sent to (preferably without changing configuration with each new domain) to a single user ...
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votes
2answers
24 views

How to remove Postfix queue messages sent to a specific domain

I have a server with multiple domains. How can I clear all Postfix queue messages for a specific domain?
0
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0answers
30 views

“user unknown” error when adding another virtual user [on hold]

I followed an Ars Technica article on setting up my own email server on Ubuntu. So, admittedly I mostly blindly followed the tutorial and some of it I didn't understand as well as I should have. ...
0
votes
0answers
8 views

Sending email from Exchange & Notes

We have a domain, contoso.com, which is running under Lotus Domino 9. Under said domain we have accounts like alexander@contoso.com or info@contoso.com, and we can send and receive eMail with Lotus ...
0
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0answers
17 views

Postfix acts as sender for unathenticated connections on port 25 for $relay_domains

My postfix can be set as SMTP server on any email client, on port 25, no auth, to successfully deliver e-mail to any domain listed in $relay_domains. This is bad, and can be easily used to send spam ...
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0answers
21 views

configure mercury mail server in xampp [closed]

I have created a server and hosted my website in it by the use of this. Now I have the server running successfully at http://202.164.xxx.xx/. But I have to configure my mail server also. It should ...
0
votes
1answer
43 views

How many bounces before removing a dead address to avoid recycled spam trap?

We are developing our own mailing tool and scan log and mail error to remove dead mails from our database. When an error 5xx is returned by mails servers, we remove the mail for a determined time ...
0
votes
2answers
54 views

Mail don't reach server

I have VPS and serve several domains. DNS/MX config should be ok, as for *.com domains mails are both sent and received. Problem is with my country domain - *.hr (Croatia) - mails are sent, but ...
0
votes
0answers
19 views

Postfix not sending mail

I am trying to send a email from a PostFix server to an Microsoft exchange server. When the email is sent I am getting the following message. postfix/smtp[2860]: 4CC787FDE1: ...
1
vote
2answers
58 views

Mail not delivered from custom email server (MS Exchange)

I have my own Exchange Server 2013 (SP1). I am able to receive emails ok but sending emails is not reliable. Emails sent to gmail or seznam.cz (email provider in Czech Republic) is ok. The problem is ...
0
votes
1answer
30 views

Exim 4 route all but one user to alternate smtp

We are migrating our mail server away from EXIM and are struggling with emails generated on the host server such as webforms and system messages, as they are not being delivered to the new host. I'm ...
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votes
0answers
57 views

email masking and forwarding service - is it possible?

We are a nonprofit medical service provider with some acceptable IT skills, but no developers; completely lost with the following issue. I would highly appreciate any kind of advice; where should we ...
0
votes
3answers
37 views

SPF settings for subdomains using common mail server

I am having trouble getting subdomains to pass SPF checks when sending mail through a common mail server (AKA relay host). Here's the current setup: MX 10 mail.example.com. example.com. TXT ...
0
votes
0answers
32 views

Sending mails from a contact form to a mail adress of the same domain but the mailserver is not the same like the hosting server

I have a website example.com/contact with a contact form hosted on one server. For the emails info@example.com I use an other server. In the settings for the domain I redirected the A-entry for the ...
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votes
1answer
23 views

Postfix conditionally forward email [closed]

How do you set up automatic email forwarding based on conditions like: forward if from emailaccount@domain.tld forward if from domain is domain.tld forward if subject contains word 'Urgent' and ...
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votes
0answers
13 views

Postfix+dovecot+pgsql: Relay access denied [duplicate]

I just set up my first mail server and have one problem with sending email through it. I created an account in thunderbird and I'm able to receive mails sent to my mail-server but I cant send any ...
1
vote
1answer
37 views

How to get exim4's smtp and pop3/imap server name and settings?

I'm missing exim4 configuration file in /etc/exim/exim4.conf. dpkg-reconfigure exim4-config runs OK and sending/receiving emails is also OK. I just don't know where is the configuration saved. The ...
0
votes
0answers
21 views

Mail to localhost user doesn't work after installing sendmail

I want to send emails to other domains from my virtual Debian server, so I've installed sendmail-bin and sendmail. Since then mailing to gmail adresses works, but mailing to users in localhost mail -s ...
0
votes
1answer
44 views

E-mail always send to spam folder [duplicate]

I have an VPS that has a pre-installed DirectAdmin and exim mailservice. But i've got a complainment from my client. When he tries and send an e-mail from his account to someone it gets flagged as ...
0
votes
0answers
34 views

Mac OS X mail server - automatically routing spam to junk folder

I am running Mac OS X Server (10.9) with the built-in Mail Server. We have SpamAssassin configured to identify junk mail. I've been asked to configure Mail to route mail which SpamAssassin identifies ...
0
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1answer
27 views

PostFix Config and PHP

I'm trying use the PHP mail function to send email on a server (the server is only suppose to send emails and not receive any emails) The PHP mail function returns that email has been sent, however ...
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votes
1answer
63 views

Solution for a Mail Server (Quality / Price) for 5000 accounts [closed]

I'm looking for a new solution for 5000 accounts. Right now, I'm with atmail, but it is failing a lot, and it is very expensive. I was seeing that with InmotionHosting, I could rent a dedicated server ...
0
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0answers
18 views

one email server per domain in a shared hosting environment or one global server?

I'm about to setup a shared hosting server for a few projects and domains. I will separate each project from each other with openvz. However I don't know yet,how to handle emails. Is it better to ...
1
vote
2answers
21 views

Will a mail relay be blacklisted if it accepts a mail relay request then later sends NDR?

Got a question about blacklisting behaviour. Internet MX records for "mydomain.com" point to my anti-spam gateways. The anti-spam gateways then relay the email to my mail server. If someone sends an ...
0
votes
0answers
26 views

Connection refused while sending or receiving email

04 TLS server with iRedMail installed. When just installed it worked okay but after 4 emails I get a error message Sep 9 12:24:18 hostname postfix/smtp[9907]: connect to ...
1
vote
2answers
73 views

Two mx records for two different mail servers in the same domain?

I have a domain named example.com. I want to set two mail servers on this domain. The main purpose to set these mail servers is to have two different mail server, as if we have two different domains ...
0
votes
1answer
39 views

Windows 2012 Essentials DNS problems querying certain RBLs

I'm running a mail server, Smartermail (SM) on Windows 2012 Essentials. The server is also doing DNS, but has no other roles. The DNS server is using the root hints and has no forwarders configured. ...
3
votes
4answers
165 views

Microsoft Exchange 2013 is not receiving internet email

We are having issues with our exchange 2013 server. The server is running Windows Server 2008 R2 Standard. The issue we're having is that our Exchange server isn't receiving internet emails. It can ...
0
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1answer
53 views

Mail is not sent to specific domain

We are using php mail function to send emails to our customers. Few days ago, we've found that email are not delivered to only hotmail.com domain. I've checked email log to see if there are any error ...
0
votes
3answers
72 views

Dovecot: deliver reply into same folder as replied-to message

UPDATE (2 sept 2014 13:01): Just to clarify, I'm interested in handling an incoming reply from someone else, so coming in via SMTP. If it is a reply to an email that is already in some mail folder, it ...
1
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0answers
38 views

Connecting Dovecot2 to ldap

I'm currently trying to connect dovecot 2 with postfix to an ldap directory. Currently I'm having an issue in the communication itself. Dovecot starts, but does not authorize the users. I'm using the ...
0
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0answers
18 views

Cyrus Deleting mailbox with @ Mailbox does not exist

After finally being able to log on with cyradm I noticed a mailbox was created: localhost> lm info*miniheli*org info@miniheli/org (\HasNoChildren) When trying to remove the mailbox I get an ...
0
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1answer
27 views

Why does m4 error “linux-gnu.m4 - No such file or directory” appear the first time after updating sendmail.mc?

SendMail 8.14.x | CentOS 5.x I've noticed that if I manually update /etc/mail/sendmail.mc (for example, enable TLS support), and then bounce sendmail, I get the following error: Shutting down ...
0
votes
1answer
71 views

How to get reverse DNS to work for multiple IPs and domains on Windows Server EC2 instance?

I have a EC2 instance setup running hMailServer. I have a primary IP on the system that I am using for example1.com email. I would like to also add a second domain example2.com using a different IP ...
1
vote
1answer
58 views

The correct PTR record in DNS

I'm confused with my DNS records. I own a domain (e.g. example.com).I've set A record for my SMTP server (e.g. smtp.example.com) for outgoing emails. The email address is (e.g. ...
1
vote
1answer
68 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. ...
1
vote
1answer
33 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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votes
1answer
59 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 ...
0
votes
1answer
27 views

Using virtualmin to manage account address books

I have configured several email accounts with Virtualmin and they're all working really well via IMAP and the web interface. In case it matters, they are configured using dovecot and postfix. ...
0
votes
1answer
78 views

On debian, how to set up a MTA like exim that allows per user smarthost configuration?

I have a problem setting up something that I think would be cool. I have a server (Debian Wheezy) and I would like to let my users send email from their smarthosts. From what I have read, exim allow ...
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votes
1answer
44 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 ...
0
votes
1answer
71 views

Hotmail not accepting my emails from my email server. [dyn dns] [duplicate]

I am using DynDNS to do name resolution and would like to send emails to Hotmail and Gmail. Gmail marks them as spam, while Hotmail just blocks everything. How do I make Gmail and Hotmail know that ...
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votes
2answers
102 views

Replying to an email from a domain email alias

We have a multi-store set up in nopCommerce 3.20 with SSL enabled. Our environment info as follows, Windows 2012 R2 VPS Server. .Net 4.5, SQL Server 2012 Express Multi SSL in Same IP using ...
0
votes
1answer
75 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, ...
0
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1answer
53 views

Can A Single Shared Mailbox Have Multiple ProxyAddress Entries/Aliases?

Exchange 2010 We have a shared mailbox in our environment (foo@subdomain.example.com) that was renamed to foo2@example.com. This ended up causing issues for applications that relied on the old SMTP ...