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

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69 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 ...
0
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1answer
164 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
87 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 ...
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1answer
63 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
32 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
56 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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1answer
29 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
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1answer
98 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 ...
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1answer
51 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
22 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
13 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 ...
33
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5answers
614 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 ...
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2answers
55 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
41 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 /etc/exim4/conf.d/main/...
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0answers
72 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 ...
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1answer
62 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 12.34.20....
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2answers
14 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 example,...
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0answers
16 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 10:22:...
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1answer
29 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 ...
0
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1answer
12 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
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1answer
37 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
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2answers
67 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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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
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1answer
20 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
49 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
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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 ...
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0answers
18 views

sending email from ubuntu to *@gmx.de always fails [duplicate]

I have a ubuntu server which has capability of sending emails irrespective of the domains. But when ever i try sending email to say myemail@gmx.de, it fails. I don't see any specific content to ...
0
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2answers
49 views

Someone sending email through my Postfix/Dove

there might have been answers to this many times. But I can't seem to find one that fits my issues so here we go: I've ran an email server on my centos machine for over four months without problem, ...
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0answers
55 views

What happens with Dovecot dsync replication if the other server is unavailable?

I'm looking at setting up another mailserver at one of our other offices using Postfix and Dovecot. We have a third party spam filter that can relay incoming mail to two servers using SMTP, and if one ...
0
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2answers
36 views

How to find out what Google account a domain is associated with?

I have a client who needs to add new email accounts to their domain. However, when I access the admin page for the domain, there are no email accounts there. And in the DNS there are MX records ...
0
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1answer
33 views

Web App Error After Installing Java on Centos Server

Good day. My web app is programmed in jsp, using some of jQuery and javascript, is on a server with Centos 6.4, the app run its own java 1.7.0 - tomcat 8.0.21 and between its functions, uses javax....
8
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4answers
298 views

MX records, better setup for load balancing and failover

Take domain example.com, it has two mail servers mail1.example.com and mail2.example.com, both already configured, usually I would go with the following setup: example.com. 1200 IN ...
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0answers
16 views

MySQL not creating tables automatically when JAMES APACHE is started

The programs I am using: JAMES Apache Server 2.3.1 binary MySQL Workbench 6.1 CE MySQL Connector 5.1.38-bin.jar in ~/james/lib OS: Windows 10 64-bit In james 3, I am able to create MySQL ...
0
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0answers
32 views

CentOS 7 Firewalld crashing server when trying to allow port for mail server

So I'm working on setting up a mail server on a CentOS 7. I'm following this tutorial: http://www.krizna.com/centos/setup-mail-server-centos-7/#install When I reach step 10 at adding firewall rules ...
1
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1answer
61 views

Running company emails at two different suppliers

Quick question regarding Exchange: We are a small company and have had our mail service hosted through Unoeuro until now. Now we have decided to move some of our mail accounts to Exchange because we ...
0
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2answers
51 views

Multiple Domains on one Server IP-Adress

i need some help. I would like to host my own Mailserver with two or more domains. But to dont get blocked on outlook.com for example. I need a PTR to every Mail-Domain to get a correct lookup. Can i ...
0
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0answers
58 views

How to customize user notification in amavis-new so to have attachment's name that makes the mail to be BANNED

I've a CentOS6 server with Amavis 2.9.1 + Postfix 2.6.6 + clamav 0.99. I started customizing notify_virus_recips_templ text files for making users understand why our company, for instance, decided to ...
0
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0answers
17 views

ASSP testmode logic

We have been operating the Anti-Spam SMTP Proxy (ASSP) software with all of the testmodes enabled, including allTestMode. We are wanting to transition to have it actually blocking spam, but in a ...
6
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3answers
227 views

What is DNS TXT record “mailru-verification”?

Sometimes I see this mailru-verification DNS record. I've Googled - and Yandexed ;) - but I found nothing about it. I suspected that is a kind of russian SPF implementation... dig example.com TXT ...
1
vote
1answer
71 views

Postfix: SMTP Relay based on alias (from address)

I recently noticed when I add an alias to a Gmail account they ask me for a remote SMTP server, username and password. Then, whenever I try to send an email using that alias it gets relayed by Gmail ...
-1
votes
2answers
56 views

Will e-mail addresses for different domains arrive at the same mailbox if MX records are identical? [closed]

Say I have bluppfisk@bluppfisk.com, but I want bluppfisk@bluppfisk.co.uk to be treated as an alias without setting up a forward. Can I just configure the MX record for bluppfisk.co.uk to point to ...
0
votes
1answer
107 views

Amazon SES not sending to multiple recipients (AWS SDK for PHP)

I've set up Amazon SES on my server. I'm using AWS SDK for PHP. It's version one. Here's the documentation. Here is the code I'm using to send: $to = $_POST['mailto']; $response = $email->...
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votes
1answer
25 views

What happens if you have one imap client and one pop client?

I have a mailbox on my server which accepts POP and IMAP connections. If I connect one remote client via POP and another remote client via IMAP, what will happen? Will the emails remain on the ...
0
votes
1answer
230 views

rDNS / PTR record when using Cloudflare

I know that Cloudflare, does not support mail trafic and uses dynamic IP's to protect the servers behind it, But I really need to be able to do rDNS lookups on my IP. I have turned of the Caching and ...
0
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1answer
31 views

Setup Auto reply for a contact in exchange 2010 [closed]

I am trying to setup an auto reply bounce back for an email contact from exchange management console. Is it possible? If it is possible please instruct me how. I tried to setup a new "Transport ...
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1answer
37 views

How to retrieve only headers of the email not body (Fetchmail or Getmail)

How I can to get only headers of the mail, to download the message body later. Is this possible?
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1answer
101 views

iRedMail: Telnet sendmail over postfix possible for aliases without mailbox while not logged in

I am using iRedMail 0.8.6 for a e-mail implementation. Now the following problem came up: It is not possible to send a mail through telnet from an existing mail account whithout being logged in. ...
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1answer
160 views

Failed to receive Email alerts on HP ILO 4

I have trouble getting email alerts on one of the HP server DL380 Gen9 on windows server2012 R2 We dont have exchange Server in our Environment. I tried enabling ILO AlertMail with my Email address ...
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votes
1answer
47 views

Add another email in GMail through SMTP server

I've had some luck using Postfix to relay emails sent to my server to multiple GMail accounts, but now I would like to go the other way around. That is, use the gmail "Add another email as your own" ...
0
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1answer
95 views

Postfix won't send PHP mail() function from form

I got postfix to send me emails from my server via console using echo "body example" | mail -s "subject example" my@email, but when I try to send an email from my website via mail(), the php function, ...