Questions tagged [email]

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

Filter by
Sorted by
Tagged with
0
votes
0answers
6 views

Make Postfix add “Authentication-Results” header to locally originated mail destined to local domain?

If I write via sendmail or SubmissionS client a mail to my virtual account (my domain is example.org), the mail I receive looks like this: Return-Path: <[email protected]> Delivered-To: [email protected]
1
vote
1answer
13 views

Postfix - Tap all ingoing and outgoing mails and push to socket or script

I want to extend a new Postfix / Dovecot setup with virtual domains and virtual mailboxes (more or less everything in default configuration) by a simple, self-made email archival solution. Therefore I ...
0
votes
0answers
13 views

forward email exim4

We have currently a dovecot & exim4 service running which is configured to handle virtual e-mailboxes by the virtual_transport. The only thing I would like to have is a simple feature to forward e-...
-2
votes
1answer
80 views

Identifying the spam source on my Centos6.9 smtp sendmail server

The server has also httpd with PHP services running I did read the guide here: https://a1websitepro.com/find-track-filthy-spammer-block/ I did install EXIM My client complains they never had this ...
-1
votes
1answer
28 views

For redirected domains, what DNS records are required?

This applies to my VPS that runs both the web server (nginx) and email server (dovecot + postfix) for several domains. Hypothetically, suppose that I have domain company.com, and that I additionally ...
0
votes
1answer
57 views

Postfix - relaying specific email addresses within a mydestination domain

Having some issues trying to get something working on postfix. That is, I have a domain abc.com which is a destination domain on my postfix server 1.2.3.4, it hosts mailboxes for addresses in this ...
-2
votes
0answers
11 views

How to setup Wordpress mail on a Raspberry Pi running Apache located upstream from an Nginx SSL Letsencrypt reverse proxy

I have several raspberry pi LAMP Wordpress sites behind a NGINX reverse proxy running LetsEncrypt (SSL terminates at reverse proxy). I would like the ability for users to interact with Wordpress forms ...
0
votes
0answers
17 views

How do I disable Secure Client Initiated Renegotiation on Dovecot?

How do I disable Secure Client Initiated Renegotiation on Dovecot? Because I learnt that it is a potential DOS threat... And, it is disabled on Apache, and Postfix. But help me disable it on Dovecot. ...
0
votes
2answers
73 views

Delivering smtp mail from postfix to exchange and online exchange problam

I have a very strange problem with one server01 its smtp notifications mail. My scenario: server01 sends mails over postfix to local on-prem exchange server. That mail is correct with to: address, ...
0
votes
2answers
29 views

Is possible to use keywords a, mx and include together in SPF?

Is it possible to use them in the same SPF record? For example: Value TXT: v=spf1 mx a ptr ip4:46.16.60.0/23 a:cdmon.com mx:mail.solarmora.com include:srv.cat ~all
0
votes
1answer
68 views

Mailcow Postfix & MIMEDefang integration

I am running an Ubuntu 20.04 server. I have installed mailcow: dockerized as shown in their documentation which includes Postfix among other tools. The mail server itself works without a problem, but ...
0
votes
0answers
11 views

Error Connecting to linux pop3 server from Active Directory Users (Local users OK)

I am migrating to a new Win2012 Active Directory Domain (for the sake of the example, let’s call it "example.com") and I have a Debian 10 Linux mail server (postfix/dovecot) with the same ...
0
votes
2answers
45 views

Purpose of a and include keywords in SPF

In tutorial I found this example record for SPF, but the a and include keywords wasn't explained. I don't find accurate information about them in the internet. v=spf1 mx a ptr ip4:46.16.60.0/23 a:...
1
vote
0answers
64 views

How can you set the SMTP envelope MAIL FROM in AIX 6.1 Sendmail?

We have new SMTP relay host and it requires that the sender's email address should be the company's official email domain instead of server hostname Already did masquerade using generetics table. ...
2
votes
3answers
3k views

Why does “nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM” return a valid mail exchanger?

For the first one it returns: Non-authoritative answer: YAHOO.COMYAHOO.COMOO.COM MX preference = 5, mail exchanger = mail.h-email.net Also if you just duplicate the tld like C:\Users\dmorri>...

15 30 50 per page
1
2 3 4 5
414