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

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1answer
18 views

Sync a Maildir backup to an account

I have a client who created about 20 mailboxes on a server, and they have been using them for a few weeks. So there is mail in them, that can't be lost. Now they recovered a backup of those mailboxes ...
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2answers
23 views

Is it possible to reject certain emails in procmail? [In SMTP session rejects based on email content]

Let's assume a typical setup where procmail is called from sendmail to filter incoming emails into correct mailboxes. Is that done while the incoming SMTP connection to sendmail is still active or is ...
3
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1answer
24 views

Logwatch is not respecting MailFrom

I've gone through today to setup Logwatch on my server and have installed this all successfully. I've followed this guide on Digital Ocean and set the MailFrom parameter to: MailFrom = ...
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0answers
7 views

Setup Citadel with wildcard domain alias

I'm setting up a Citadel email server, and I have a lot of domains I manage. I need to be able to receive email at several addresses (webmaster, etc) at any of those domains. I've tried setting up ...
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0answers
9 views

What's a reproductable way to set up a Linux server for sending e-mails but no spam? [duplicate]

I've created a software that has to be installed onto a Linux server and from time to time it has to send a notification email. So, for people who want to use my software, I've created a bash script ...
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0answers
13 views

changing dovecot/ispconfig mail user password via mysql prompt

I want to change mail user pass of a dovecot/ispconfig system via mysql prompt. I was using a script with the following query in another machine (just dovecot) : UPDATE mailserver.virtual_users ...
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1answer
33 views

Set PostFix relay_host only for outgoing emails

I setup an architecture with a PostFix mail server and an Encryption gateway. I am relaying all my outgoing SMTP traffic (even mails going from mydomain.com to mydomain.com) to an encryption Gateway ...
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1answer
7 views

OSX Server - Logging POP Mail Connections

I am trying to keep a running record of the users that are accessing our OSX 10.6.8 Mail Server using POP instead of IMAP. The Server Admin application features a running list of Mail connections ...
0
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1answer
23 views

Should a mail server receive mail at the hostname or just the domain?

When configuring a mail server, should it be setup to receive mail at the hostname or just the domain? For example, if the hostname of the mail server is sub.domain.tld, should mail from anywhere be ...
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0answers
22 views

Alternative to Hypermail? [closed]

Basically, I'm looking for something that converts standard (as far as the word is even applicable in this case) MBOX files into tidy HTML and is somewhat actively supported, not abandoned altogether ...
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0answers
18 views

Enterprise batch processing of application-generated emails

Here is what I perceive is our problem. In our corporate environment, we have developed over 40 custom .Net applications (and growing). A good many of these send email notifications in some fashion. ...
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1answer
127 views

SMTP: Received from unknown [xxx.xxx.xxx.xxx] -> but IP does have a valid PTR/RDNS

I got the following problem. I got an smtp-relayserver that collects outgoing mails from other servers and checks them (spam assassin). Now the headers are showing this: Received: from ...
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1answer
28 views

linux: forward mail in mailbox

Is it possible to forward mail out of a mailbox to another mailbox? I know about .forward, that's not what I want to do(seems like that's 100% of the answers out there). I already have mail in a ...
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0answers
8 views

Running an own Mail Server on Amazon EC2 - How to keep Server of Blacklists [duplicate]

We're thinking about running our own mail server on a Amazon EC2 instance. The main issue, that we are expecting, is to keep the server of SPAM blacklists. What are the necessary precautions we have ...
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0answers
5 views

Gmail relay server not working from one sender 550-5.7.1 [duplicate]

I've got a postfix server set up to relay emails sent to my personal domain to a gmail account. It's been working fine for everything until today when a sender reported that all their emails are being ...
1
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1answer
41 views
+50

Secure Email Settings for Email Clients & for PHPMailer

I'm trying to work out how to make my outgoing/incoming email's as secure as I can possibly make them. First of all, my domain has Wildcard OV SSL Certificates, I have copies of the .csr, .crt and ...
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3answers
49 views

Setting up an email proxy server?

So i have 4 application servers and each one directly connects to an SMTP server to send out the emails. What I want is to have something in the middle that my servers connect through instead, and ...
1
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0answers
23 views

Postfix relayhost not working

I have a simple goal: I am setting up a monitoring system and I want this monitoring system to send me emails when a problem with my servers occurs. I have Postfix installed. And I want to use mail, ...
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0answers
13 views

Opencart: can't send email only to gmail [on hold]

Recently i've been working on a opencart based website, everything works just fine, the only thing it doens't work fine is the emailing system. If i use a hotmail account to register everything will ...
1
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1answer
56 views

Number of issues with postfix, DKIM, and mail getting rejected or bulked

I'm having a number of issues with Postfix and mail sent being rejected or put in the spam/junk folder. I am trying to send emails on behalf of a number of my customers. I've got a postfix server set ...
0
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1answer
27 views

Undelivered Mail Returned to Sender

How can i fix this. From: MAILER-DAEMON@adam.yocta.com (Mail Delivery System) Date: 26 April 2016 at 5:50:23 PM GMT+4 To: contactus@immunity.ae Subject: Undelivered Mail Returned to Sender This is ...
0
votes
1answer
29 views

Exchange server 2016 Content Filtering

I have setup an exchange server on premise with at SMTP Relay on our VPS. It works very well, unfortunately I’m a little confused as to where I setup the various permissions for SPAM. All my incoming ...
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1answer
30 views

Using TLS in email sending

I've configured my server (Exim on Debian Linux) to send emails (with SMTP) only to email servers which accept TLS. I did this so that nobody can steal a password reminder email. Right decision? Do ...
2
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1answer
47 views

Sending mails from Gmail through my VPS (postfix, dovecot, postfixadmin)

This problem has been bugging me for a long time now and i want it to be fixed. On my VPS I have set up Postfix working correctly with postfixadmin and dovecot. (I can send (by terminal) and receive ...
0
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1answer
17 views

exim4 issues sending mail to gmail

I am trying to send automated emails from my server to my gmail account, so that I can get important notices like when my webserver is not responding, or just some daily statistics. As email sending ...
1
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1answer
22 views

Can I prevent users from loading images in emails (disable “re-enable the blocked features”)

Using only Office 365 with no onsite AD or exchange infrastructure. Can I push out a policy or something to online and local installations of outlook to control whether images are automatically ...
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2answers
34 views

Bulk emails - what to do with “over quota / mailbox full” undeliverable emails?

We send out newsletters / bulk mail (double opt-in of course). We automatically delete hard bounces (mailbox unavailable, user unknown, host unknown...) right away from our mailing lists. But a lot ...
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votes
1answer
23 views

Is this considered as spam email generated by postfix?

I have just checked my email log at /var/log/mail.log Apr 22 22:09:02 server2 postfix/pickup[14310]: D1FCF737C5B0B: uid=0 from=<root> Apr 22 22:09:02 server2 postfix/cleanup[17071]: ...
1
vote
1answer
47 views

Can't send mail from amazon ec2 instance

I am using an Amazon EC2 instance for two projects which have their own domain name. I need using mail services so I created two email accounts on Zoho and I have been able to receive emails from my ...
0
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1answer
35 views

554 5.7.1 unknown recipitent [closed]

I'm trying to send an email to M@Danielmadison.co.uk (there are no attachments being sent if that would affect anything) and i keep getting the following message: Delivery to the following recipient ...
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0answers
12 views

No folders on E-Mail using Postfix, Dovecot, RoundCube, all in MySQL

I don't have any folders on RoundCube for users. I have set up RC configs to auto add them and Dovecot should do it too, don't know what I did wrong. I use MySql (MariaDB) on RoundCube and Postfix. ...
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0answers
9 views

postfix sender_bcc_maps to local mailbox

I have an email relay set up using postfix. I would like to archive emails from a specific sender to a local unix mailbox on the same machine. I have postfix configured using sender_bcc_maps, and it ...
30
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5answers
413 views

Is it becoming impossible to be a small mail provider?

I operate a small mail server for my private emails, some friends who have websites and two NGOs. In total my server sends between 60 and 400 messages a day. Now a lot of these emails are personal ...
1
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2answers
19 views

How do I enable recipient verification in Exchange?

My problem basically boils down to this: Exchange (2016) is accepting mail for non-existent addresses and then later sending out DSNs (delivery status notification) to notify the sender of failure. I ...
1
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1answer
32 views

Why is exim not adding the DKIM header to emails?

My emails used to be getting signed with DKIM in the header. Now if you check the email source it is not signing. Whatis wrong? How can I debug, what logs can I look at? cat ...
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0answers
22 views

Postfix error Recipient address rejected: User unknown in virtual alias table

I have set up a Postfix email server with Dovecot for IMAP running on FreeBBSD 9.3. I am having an issue where I am unable to send an email to any users on the server from an external domain name. I ...
1
vote
1answer
48 views

Spam filtering: MX record and reverse DNS (PTR)

If I perform an MX query on my domain (domain.com) I receive this answer: Pref Hostname IP Address 5 mail.domain.com 12.34.20.145 If I perform a reverse DNS (PTR) query on ...
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vote
2answers
11 views

sendmail: Redirect one specific mail

I do not have any experience with sendmail and googling around didn't help me so far. I need to redirect every email that goes to a specific address to another address in the same domain. For ...
0
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1answer
68 views

Redirect emails windows server [closed]

We are setting up a windows server for website and webapplication hosting. There will be around 20 websites and each one of them has at least 3 email adresses (e.g. info@domain.com). These email ...
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0answers
20 views

I have PhpMailer spamer on my server [duplicate]

I have a phpmailer who spam with my server, i dont find the breach, please help. Block port 25 with iptables ( INPUT, OUTPUT ) With postfix stoped i got > 19:09:48.172091 IP6 (hlim 64, ...
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0answers
7 views

exim4 failed to read delivery status : frozen message

I'm having some difficulty with exim4 in that after sending an auto_away message successfully, it has difficulty reading the status and then creates a frozen message in the mailbox. 2016-04-19 ...
-3
votes
1answer
28 views

Domain and mail redirect [closed]

I have domain at providerA and hosting with domain at providerB. I configured DNS that domainA would redirect to hostingB. With .htaccess setup so now entering either domainA or domainB it shows ...
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votes
0answers
14 views

opendkim dead but pid file exists

I tried delete /var/run/opendkim/opendkim.pid, but after restart it's again shown error: [root@server ~]# rm -rf /var/run/opendkim/opendkim.pid [root@server ~]# service opendkim restart Stopping ...
0
votes
1answer
11 views

Automatically create virtual email for user using postfix

On our website, we have some special users that can be contacted by email. It means that for now, they have a public profile page where after a mouse click their email is visible. Moreover, to log on ...
1
vote
1answer
13 views

Update after MailEnable manual MAI copy

I've manually restored mai files after I had to recreate mail account. Now Outlook like clients are able to download those mails but in webmail (MailEnable Webmail 9.00) I cannot see any of those ...
1
vote
2answers
21 views

Dovecot: Relative home directory paths not supported

This is my first time setting up an email sever, and have gone with Dovecot for the IMAP side. I've been following this tutorial. When I try to login to the server, this is printed to the error log: ...
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vote
2answers
30 views

Postfix, setup SMTP for hosted websites

I have a VPS which hosts different domains, and I'm trying to setup SMTP with postfix, so the users can send emails via SMTP from addresses like: user1@site1.com user2@site1.com user3@site2.com I ...
0
votes
1answer
15 views

Postfix relay: Forward one domain on untouched. All others, redirect

I'm currently using a virtual_maps config with regex to forward all emails sent to my postfix server to one email address /.+@.+/ email@example.com I'd like to make an exception to the forwarding ...
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votes
1answer
39 views

Mail server with different IP than webserver - getting 554 error

I have a webshop running on a Digital Ocean droplet, while the email inbox for the same domain is running on a different VPS. All of the sudden some of the emails sent by the webshop are being ...
0
votes
0answers
7 views

Using mail.domain1.com for domain2.com mail server? [duplicate]

I have a Linux CentOS machine, and 2 domains hosted on it: domain1.com domain2.com Is it safe to use one mail server for both: mail.domain1.com? If I use mail.domain2.com, I have problem ...