After install my server send mail in spam ...

Hello,
I use dedicat server Centos 7 64biti and last version free CWP. Add new user and new domain and make mail adress. Mail send in spam. What configuration you recommend for setting mail?

Mail marked as ‘spam’ on local or on remote server? If on remote, check your IP and MX via mxtoolbox.com

Is ok ip and mx not have blacklist ...

You need to investigate mail headers like X-SPAM* - it can help to find why Mail was marked as spam

If gmail and the like are marking it spa, make sure your hosting company has a reverse DNS entry setup for your server. It's not difficult but your colo company needs to do it for you. Most big mail services will spam anything without a reverse entry. https://en.wikipedia.org/wiki/Reverse_DNS_lookup

If gmail and the like are marking it spa, make sure your hosting company has a reverse DNS entry setup for your server. It's not difficult but your colo company needs to do it for you. Most big mail services will spam anything without a reverse entry. https://en.wikipedia.org/wiki/Reverse_DNS_lookup

I make reverse dns for my main ip server. Is same problem. What need ask my company hosting? I am novice and not understand very good

How to examine mail headers https://www.arclab.com/en/kb/email/how-to-read-and-analyze-the-email-header-fields-spf-dkim.html

This is the code... Thanks for help
Original Message
Message ID   <6ca5dd3dce945ea3ad73cea6015aab8a@nicolaeguta.org>
Created at:   Sat, Dec 30, 2017 at 1:16 PM (Delivered after 1 second)
From:   contact@nicolaeguta.org
To:   marianvipstudio@gmail.com
Subject:   Mesaj Test
SPF:   NEUTRAL with IP 62.210.75.231

Delivered-To: marianvipstudio@gmail.com
Received: by 10.100.183.161 with SMTP id v30csp1108621pjb;
        Sat, 30 Dec 2017 05:16:35 -0800 (PST)
X-Google-Smtp-Source: ACJfBosp/Ko9Xi54UNeKZfz3GtVly3CoEW5U9+YM4oXLOAcW06MBOgSG/Sdi6l12U9/lxBnbBSWc
X-Received: by 10.223.139.3 with SMTP id n3mr26218524wra.44.1514639794953;
        Sat, 30 Dec 2017 05:16:34 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1514639794; cv=none;
        d=google.com; s=arc-20160816;
        b=OaQHjfVwCYxhlxTXV9k6wHRd/7uEqXjrf0BYUxwtvNKuvL7dYzYdWZUvN3mPnsVwMQ
         GKHehn1JYYi3CBQ5zs0vYcRGlXILazU7iuIbtkIQrKJbXbQqYSbKHy99EK/xaCFolrTn
         Ap9CAbEAGtoX1El5LqL50d45AoW/c2yjHumwtChZgY8Pbt9Vwujdluaup3QcjY3k+DXb
         FiqAVjBXEdeJSWB52+wzVbRGRyibGFEAyhiANsg0U0ZIrreYMmRT7xatH0NZ8d9lX/Kh
         S0qaxu5xwHcS9AuHZZiCFl+0YIk77dgf0fMFhgwxYdBhfR2EOxSwAMuLW74wDSGD/jHS
         f8DQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=user-agent:message-id:subject:to:from:date
         :content-transfer-encoding:mime-version:arc-authentication-results;
        bh=smDVk+taz9vvTxZrfOFZrd0aIWt1cdHP80ODOa7e0lc=;
        b=bnZ6DkYT8MFlaPyhsl3iVw4M8uIfc3XdhOnDPX7fZHvZ4qlXdK1BVqYNPF5Uofeyuf
         lC9WxfGbql0Eqx6yQR5PqrhBKdggUOjKq9DHUi5Sc5jo2cWLpeNc1IN1agDvntJxdJ/s
         pz73fzLkIh0ZR8NDOlr7UV+131XOlN7Gsh2cs50w/ECZHgbPEmR75xgjzA9WH3Q8ZAd5
         9UCK7PNY2Fhz7D6+ToAi5UloXYKpELUayAo+zTTSCMagN4aq7O0oQ+Z2eWaEBK7SAxbB
         lujTtymyBWZIdAiuHrAoHb/Ugkfiz0j8gN//zb2hFMh2f17rW1CUpbbDNMBDD12Ix0UW
         PjSg==
ARC-Authentication-Results: i=1; mx.google.com;
       spf=neutral (google.com: 62.210.75.231 is neither permitted nor denied by best guess record for domain of contact@nicolaeguta.org) smtp.mailfrom=contact@nicolaeguta.org
Return-Path: <contact@nicolaeguta.org>
Received: from serv1.youmusic.ro (62-210-75-231.rev.poneytelecom.eu. [62.210.75.231])
        by mx.google.com with ESMTPS id l26si2643620wra.100.2017.12.30.05.16.34
        for <marianvipstudio@gmail.com>
        (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
        Sat, 30 Dec 2017 05:16:34 -0800 (PST)
Received-SPF: neutral (google.com: 62.210.75.231 is neither permitted nor denied by best guess record for domain of contact@nicolaeguta.org) client-ip=62.210.75.231;
Authentication-Results: mx.google.com;
       spf=neutral (google.com: 62.210.75.231 is neither permitted nor denied by best guess record for domain of contact@nicolaeguta.org) smtp.mailfrom=contact@nicolaeguta.org
Received: from localhost (localhost [IPv6:::1]) by serv1.youmusic.ro (Postfix) with ESMTPA id 088E720000D3 for <marianvipstudio@gmail.com>; Sat, 30 Dec 2017 14:16:33 +0100 (CET)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII; format=flowed
Content-Transfer-Encoding: 7bit
Date: Sat, 30 Dec 2017 13:16:33 +0000
From: contact@nicolaeguta.org
To: marianvipstudio@gmail.com
Subject: Mesaj Test
Message-ID: <6ca5dd3dce945ea3ad73cea6015aab8a@nicolaeguta.org>
X-Sender: contact@nicolaeguta.org
User-Agent: Roundcube Webmail/1.2.3

Un mesaj sa vedem daca ajunge cu bine !

If gmail and the like are marking it spa, make sure your hosting company has a reverse DNS entry setup for your server. It's not difficult but your colo company needs to do it for you. Most big mail services will spam anything without a reverse entry. https://en.wikipedia.org/wiki/Reverse_DNS_lookup

I make reverse dns for my main ip server. Is same problem. What need ask my company hosting? I am novice and not understand very good

Reverse DNS is set up by the owner of the IP block, not the domain.

Try to send a 'big' e-mail - 1MB or even bigger, with .PDF as attachment and see how it will be detected
Try to send to other mail domain, not to gmail.com - and see how it will be detected

Try to setup serv1.youmusic.ro. as MX in nicolaeguta.ro DNS zone.  Another goal is that serv1.youmusic.ro already have 'good corresponded-to-A' PTR record.

maybe ip it in list spam?

Try to send a 'big' e-mail - 1MB or even bigger, with .PDF as attachment and see how it will be detected
Try to send to other mail domain, not to gmail.com - and see how it will be detected
Try to setup serv1.youmusic.ro. as MX in nicolaeguta.ro DNS zone.  Another goal is that serv1.youmusic.ro already have 'good corresponded-to-A' PTR record.

I send atach and same problem
I send in yahoo.com mail and is ok.
For setup mx in nicolaeguta.org, sorry not understend

If yahoo.com mark your mail as 'good' but Gmail mark you mail as 'spam', you need to report about problem to Gmail team via form https://support.google.com/mail/contact/msgdelivery