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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-2
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0answers
15 views

My exchange server 2010 is queuing email outbond

First my client computer receive this error: Delivery is delayed to these recipients or groups: xxx@hotmail.com (xxx@hotmail.com) Subject: Car inquiry This message hasn't been delivered yet. ...
0
votes
1answer
28 views

rDNS and forward DNS for mail server behind firewall, different IPs

All, Here is my setup : Firewall(x.x.x.114) <--> mail.mailserver.com (FQDN) (x.x.x.118) When sending mail, header has following IP ...."Receivedfrom mail.mailserver.com ([x.x.x.114])", my ...
0
votes
1answer
12 views

Do spam impersonators impact my server's reputation?

Recently I opened my server's webmaster email inbox and found 32 "Delivery status notification failed" emails reporting the failure of the delivery of 32 emails I did not send. After some ...
0
votes
1answer
31 views

Unable to resolve IP Blacklisting with Spamhaus

I have a website which is currently assigned an IP 64.XXX etc from my hosting provider. This IP when looked up comes up clean with all Blacklist checks that I run. However, I am also being assigned an ...
0
votes
0answers
11 views

Scalix - Finding out when a mailbox received its last email

I have an old email-server that I want to shutdown. To do that I want to know when each mailbox on that email-server has received its last email. Sadly i don't know much about Scalix, just a few ...
0
votes
1answer
30 views

Using PTR on SPF Record and Multiple Domain Pointing Single Server

Today I've checked my SPF is valid on some of the sites and invalid on some of the sites I've tested. Microsoft also couldn't see my SPF record for some reason while others can. (Sender ID ...
0
votes
2answers
60 views

Relay access denied (in reply to RCPT TO command) Postfix Issue

I am trying to configure my server for email taking reference form this link: SMTP Relaying Outgoing Mail in Postfix - using Webmin. I used Mandrill smtp server in my case. I have also configured a ...
2
votes
1answer
27 views

Android email auto setup

There are some questions on serverfault about setting up Thunderbird autoconfiguration and Outlook autodiscovery, but when using the default email client on Android (v4.4 but I think this is universal ...
0
votes
1answer
33 views

Some mail providers reject my mails

I recently moved to a new server and now one of my users complain about e-mails which don't reach the recipient. The mail logs tell me that they reject the mail AOL will not accept delivery of this ...
2
votes
1answer
39 views

Does postfix cache RBL queries?

This is driving me nuts… Linux Debian + postfix… /etc/postfix/main.cf has the following lines: smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/access, ...
-1
votes
0answers
25 views

Apple Mail app causes SSL_accept error on postfix

I have set up an email server using dovecot+postfix and it's all working fine except for the outgoing mail sent by the OSX Mail app. In that case I get the following error: postfix/smtpd[16488]: ...
2
votes
1answer
13 views

How are display names determined for mail that comes from outside Exchange?

I've found lots of articles explaining how Exchange gets display names out of LDAP, etc., but not a lot about what it does when mail isn't coming from within the Exchange environment. When we've sent ...
0
votes
1answer
36 views

Reverse DNS does not contain the hostname error from MXToolBox

I am not sure where I have gone wrong in my configuration but I am getting the error Reverse DNS does not contain the hostname for my domain sparkdojo.com I had the hosting company set the PTR record ...
0
votes
1answer
15 views

Can't setup mail externally zimbra 8.6

I just setup zimbra 8.6 on ununtu 14 and have only one issue I cannot setup mail externally Here is mystery Server host name is tin-exc-1.tingateitsolutions.com.au Domain is ...
4
votes
1answer
168 views

Can a backup mx server be configured to reject email submissions if it can connect to the primary mx?

I know that one technique spammers may use is to send spam to a secondary mail server, since those servers tend to be less powerful and may not have all the spam filtering that the primary has. Can I ...
-1
votes
0answers
24 views

One domain serving mail and web server on two different machines [closed]

So I have this use case: I have a remote machine (dedicated) running ubuntu, I also have remote hosting where I have access to mail server. I own a domain example.com. I need to deploy an ...
1
vote
1answer
48 views

Minimal setting of Exim from Debian 8.0 “Jessie” to work out-of-the-box for receiving mail

I am looking for a simple advice what should be essentially (minimally) done to make a default Debian 8 Jessie's exim4-daemon-heavy installation to actually receive any mail. Speaking of essential ...
0
votes
1answer
16 views

osTicket emails show as sent from wrong address

I'm currently trying to configure osTicket to act as our support system. Everything seems to be working pretty much as expected. However when an email sent by the system is received, instead of ...
-4
votes
2answers
53 views

Stop all websites from sending emails

I have Ubuntu Server set up on a machine. I have Virtualmin installed to manage my websites. The idea is that 2-3 of them use open source platforms like Wordpress and I didn't had time to update ...
0
votes
0answers
9 views

Zimbra mail server - Temporary lookup error only via mail client (not webmail) [duplicate]

I've configured a Zimbra server with Ubuntu (zmcontrol -v ~ Release 8.5.1.GA.3056.UBUNTU14.64 UBUNTU14_FOSS edition.) and I can send e-mail via webmail just fine (both to an address inside the domain ...
1
vote
0answers
25 views

PHP sendmail_path not getting updated [closed]

Environment: Debian 7; PHP 5.4.39; Apache 2.2; ISPConfig Using the Perfect Server Debian guide from howtoforge, I built a web server to serve some PHP applications. My intention is to use an external ...
0
votes
0answers
18 views

Server apparently being exploited to send emails [duplicate]

I have a dedicated server which runs a forum, a couple of wordpress installations and a prestashop ecommerce platform. My datacentre keeps cutting my connection, stating that my server is sending out ...
0
votes
0answers
18 views

Amavis won't start without error

My e-mail server is almost fully set up. I use Postfix with Dovecot for sending mails. Now I try to configure Amavis for anti-spam and anti-virus. When starting amavis and checking the status, I ...
0
votes
1answer
19 views

Mail server not picked up by TLS diagnostic tools

I have mailing server under mail.luken-tech.pl . Can anyone explain how this: https://www.ssllabs.com/ssltest/analyze.html?d=mail.luken-tech.pl&hideResults=on shows "Assessment failed: Unable to ...
2
votes
2answers
46 views

How to check if mail server PTR is correctly configured?

As mentioned here, mail server Reverse-DNS (PTR record) must configured well. most offen the FQDN is not in own control and it is defined by the ISP provider. and it never equals with mail server ...
0
votes
0answers
18 views

Sendmail internal relay to sharepoint 2013

We have a sendmail server which we use for all of our automatic/service accounts to be alerted. This sendmail domain is different from our exchange servers. For example server maintenance or ...
-1
votes
0answers
16 views

Why mails are in spam folder [duplicate]

I have set up a mail server (Postfix) in CentOs with proper configuration six months before. For the past five months, the mails which I have been sent are get received in Inbox folder. But, Now I ...
0
votes
0answers
17 views

Repair Outlook 2007 OST File [closed]

Previous versions of Outlook had the Inbox Repair Tool, which allows you to repair OST/PST files. Currently, I am using a Windows Vista and Office 2007 computer. I need to repair my OST file. It ...
-1
votes
1answer
44 views

Mail being marked as spam by gmail but only from certain addresses [closed]

I am sending the same message through the PHP mail() function using two different addresses in the header. When I send the email with contact@domain.com it is marked as spam by gmail but when I send ...
1
vote
0answers
25 views

How to troubleshoot marketing e-mail inbox rate / deliverability? [duplicate]

After previously using managed ESP's, we've recently switched over to our own server (CentOS 6) that's set up to send bulk e-mails with 12 IPs/SPF/DKIM. Campaigns are processed and sent via ...
2
votes
1answer
69 views

postfix/dovecot says “postmaster_address setting not given” but it is

I'm trying to configure postfix and dovecot to work together with virtual domains stored in MySQL, but I keep running into this whenever mail is passed from postfix to dovecot. Apr 26 11:54:40 smtp ...
-1
votes
0answers
27 views

SPF record definition [duplicate]

I'm stuck on how to create SPF records for a mail server that is hosting multiple domains. I have the following: DOMAINA.COM A Record - main-1.domaina.com CNAME Record - mail.domaina.com MX Record ...
0
votes
3answers
42 views

Server setup for SSL for sending and receiving emails?

I managed to setup one physical server using postfix, dovecot with mysql server. I do plan to use virtual domains and users. Current setup to send and receive emails. SENDING smtp.example.com ...
0
votes
1answer
31 views

Postfix block internal communications

I'd like to know how to block my users to send mail to each other but give them chance to send and receive external mail. john@localdomain.com <---> julie@localdomain.com REJECT ...
0
votes
1answer
24 views

Export or Forward /var/spool/mail/USER (readable for customer)

there are some bounce mails in the /var/spool/mail/USER directory that failed to send. Now the customer receives all of those mails from us because he does not have direct access to them. I can ...
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
votes
0answers
64 views

How can I spam-filter outgoing email on a postfix server?

I'm in the process of setting up a solid mail system. It's my second time setting up something like this, so I already have a basic understanding of how to approach certain topics. I'm using postfix ...
-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 ...
5
votes
3answers
78 views

What to do if one doesn't want to receive email bounces?

Background—the standards RFC 5321 §4.5.5 states: All other types of messages (i.e., any message which is not required by a Standards-Track RFC to have a null reverse-path) SHOULD be sent with ...
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
0answers
27 views

Postfix relay smtp to 2 relayhosts for same domain [duplicate]

have a setup in which Postfix relays mail for a specific domain to another mail server (Exchange) via the usual transport file: # /etc/postfix/main.cf transport_maps = hash:/etc/postfix/transport # ...
0
votes
0answers
30 views

hMailServer --> find all bounced back emails

I've been assigned to clean up some of our obsolete client's email from database. So the process was to send all client an email and see which one bounces back. now the problem is I can't find where ...
0
votes
0answers
16 views

How can I detect mail servername used from my clients to my server?

I have a web and mail server with Ubuntu 10.04, Apache 2, courier, postfix, Ispconfig 3 and multiple sites hosted. The clients use mail from Outlook with a config like this: @domain1.com use pop and ...
0
votes
1answer
28 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
1answer
86 views

How to change Zimbra Welcome page

I have configured a zimbra mail server. It is working fine. But I want to make one of my own html page as welcome file before login page. I have tried to edit the web.xml file but it is of no use. ...
5
votes
2answers
121 views

Configure exim4 to use Microsoft Exchange as smarthost

My company has set recently set up an Active Directory driven Microsoft Exchange environment to consolidate outgoing mails. We do have a set of staging servers which should now use our MSEXCHG as ...
0
votes
0answers
19 views

Prevent Hmail from relaying spam

I am running hmail and it is sending a lot of spam without my knowledge and without me making it send anything. This is highly frustrating. What must I configure in Hmail to prevent it from ...
1
vote
1answer
243 views

Changing hosts resulting in 554 5.7.1 <xxx@domain.tld>: Relay access denied

I have a problem with switching my project from hoster A to hoster B. There are three parties involed: the old hoster, the new hoster and NetworkSolutions as a registrar. I have a .com and and a ...
0
votes
1answer
32 views

How to set up separate relay for sendmail outgoing mail to foreign domains

I have FreeBSD 10.1 and sendmail 8.14.9. Assume my host is "myhost.mydomain.com" and I want: All mail destined for hosts in "mydomain.com" to go to "mail.mydomain.com" while appearing to originate ...
1
vote
2answers
161 views

Can't communicate with SMTP server from particular machine

Here is the situation: When I run the following on my local machine, the mail server responds: $ telnet mail.server.com 2525 Trying <mail.server.com IP>... Connected to mail.server.com. ...