Is changing "Hostname" mandatory?

2020-10-20 Thread Jason Long
Hello, For configuration Postfix, is changing "hostname" to something like "Mail.example.net" mandatory? For example, my server running Apache and I don't like to change its name. Thank you.

Re: Mail server without MX record.

2020-10-16 Thread Jason Long
Thank you. I got my answer with your text. On Friday, October 16, 2020, 02:19:20 PM GMT+3:30, Jaroslaw Rafa wrote: Dnia 16.10.2020 o godz. 08:02:30 Jason Long pisze: > Thank you. > Thus, in Postfix or Dovecot configuration file I can't change the standard > record

Re: Mail server without MX record.

2020-10-16 Thread Jason Long
Thank you. Thus, in Postfix or Dovecot configuration file I can't change the standard record? On Friday, October 16, 2020, 01:13:45 AM GMT+3:30, Richard wrote: > Date: Thursday, October 15, 2020 18:57:29 + > From: Jason Long > > If the DNS administrator gi

Re: Mail server without MX record.

2020-10-15 Thread Jason Long
Thank you. If the DNS administrator give me an A record then can I sending and receiving emails from the Internet by the current configuration? On Thursday, October 15, 2020, 08:49:36 PM GMT+3:30, Wietse Venema wrote: Jason Long: > Thank you, but I never got my answer.1- Postfix

Re: Mail server without MX record.

2020-10-15 Thread Jason Long
Thank you, but I never got my answer.1- Postfix or Dovecot has any option about changing default record that a mail server using?2- Could A record offer MX record in my goal? On Wed, Oct 14, 2020 at 10:09 PM, Wietse Venema wrote: Jaroslaw Rafa: > Dnia 14.10.2020 o godz. 13:38:12 Wietse V

Re: Mail server without MX record.

2020-10-14 Thread Jason Long
October 14, 2020, 06:18:49 PM GMT+3:30, Kris Deugau wrote: Jason Long wrote: > Thank you. > Can you tell me how can I setup my Postfix server with A record You just add an A record with a suitable name for your server.  There's nothing Postfix-specific about this. > Or h

Re: Mail server without MX record.

2020-10-14 Thread Jason Long
It is so odd that some people here don't like to answer to the users questions and forwarding them to read a book with 496 pages. On Wednesday, October 14, 2020, 10:42:08 AM GMT+3:30, Viktor Dukhovni wrote: On Wed, Oct 14, 2020 at 07:04:25AM +0000, Jason Long wrote: > Can

Re: Mail server without MX record.

2020-10-14 Thread Jason Long
ea to read some of them: they cover how postfix works with DNS and MX. On Tue, Oct 13, 2020 at 10:15 PM Jason Long wrote: > I'm really thankful for all information and help. > Excuse me, I have some questions and I'm thankful if anyone answer to them by > number: > 1- Each

Re: Mail server without MX record.

2020-10-13 Thread Jason Long
I'm really thankful for all information and help.Excuse me, I have some questions and I'm thankful if anyone answer to them by number:1- Each domain can have a MX record?2- If a company need multi MX record then it must have multi DNS server too?3- Other methods like forwarding need MX record to

Re: Mail server without MX record.

2020-10-13 Thread Jason Long
3 Oct 2020, at 09:45, Bernardo Reino wrote: > On Tue, 13 Oct 2020, Jason Long wrote: > >> I have an Internet domain name and a Linux server and I want to have an >> email server for send and receive emails. For example, if my domain is >> "example.net" then I w

Re: Mail server without MX record.

2020-10-13 Thread Jason Long
MX, no SPF/DKIM, no public port. If you want to receive emails, then having an MX record is a good idea.  You would also need to listen public port for incoming connections, and may be one more port for clients (465 or 587) On Tue, Oct 13, 2020 at 5:19 PM Jason Long wrote: > Thank you for

Re: Mail server without MX record.

2020-10-13 Thread Jason Long
Thank you for all of your messages. With that tutorial, which record or port is needed?  On Tuesday, October 13, 2020, 04:31:34 PM GMT+3:30, Wietse Venema wrote: Jason Long: > Hello, > Can I use Postfix without MX record? I installed Postfix and?Dovecot > v

Mail server without MX record.

2020-10-13 Thread Jason Long
Hello, Can I use Postfix without MX record? I installed Postfix and Dovecot via "https://wiki.centos.org/HowTos/postfix"; tutorial and I want to know can I use it without MX record? Thank you.

Re: I'm a beginner and want to setup Postfix on CentOS.

2020-10-12 Thread Jason Long
www.liquidweb.com/kb/what-is-localhost https://forums.centos.org/viewtopic.php?t=47101 discusses how it gets interpreted/set. lo and ifconfig does not enter into the discussion. On 2020-10-12 12:44 p.m., Jason Long wrote: I disabled IPv6 in CentOS but connect with localhost not af

Why emails sending to Spam?

2020-10-12 Thread Jason Long
Hello,Why I sending email from my server to Yahoo! Or Gmail, then it sent to Spam and not Inbox folder? I checked my server IP by "https://mxtoolbox.com/blacklists.aspx"; and everything is OK. Thank you.

Re: I'm a beginner and want to setup Postfix on CentOS.

2020-10-12 Thread Jason Long
I disabled IPv6 in CentOS but connect with localhost not affected. Sent from Yahoo Mail on Android On Mon, Oct 12, 2020 at 6:48 PM, Jason Long wrote: # ifconfig lo        Link encap:Local Loopback             inet addr:127.0.0.1  Mask:255.0.0.0           inet6 addr: ::1/128 Scope:Host

Re: I'm a beginner and want to setup Postfix on CentOS.

2020-10-12 Thread Jason Long
disable-ipv6-in-centos-8/ Or use IPv4 address explicitly: "telnet 127.0.0.1 25". I'd stay with the latter case. On Mon, Oct 12, 2020 at 5:55 PM Jason Long wrote: > Thank you for your reply. > How can I sure I'm using IPv4 or IPv6? > > > On Monday, October 12,

Re: I'm a beginner and want to setup Postfix on CentOS.

2020-10-12 Thread Jason Long
address. Try "telnet 127.0.0.1 25" On Mon, Oct 12, 2020 at 3:25 PM Jason Long wrote: > Hello, > I installed Postfix on CentOS and my "main.cf" file is as below: > > myhostname = mail.my-example.com > mydomain = my-example.com > myorigin = $mydomain > ##

I'm a beginner and want to setup Postfix on CentOS.

2020-10-12 Thread Jason Long
Hello, I installed Postfix on CentOS and my "main.cf" file is as below: myhostname = mail.my-example.com mydomain = my-example.com myorigin = $mydomain ## Uncomment and Set inet_interfaces to all ## inet_interfaces = all ## Change to all ## inet_protocols = all ## Comment ## ##- Uncomment ## mydes