Unable to send mail by PHP mail() function

[Vikalp_C]

Hello, I need help in sending mail by php mail() function, which is used in mail forms in 4 of my websites.
When visitor send a message I never receive them. Qmail is configured properly(I think so)
Here is the sysinfo -

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[root@server bin]# sh /script/sysinfo

A. Kloxo-MR: 6.5.0.f-2016111301

B. OS: CentOS release 6.8 (Final) x86_64

C. Apps:
   1. MySQL: mysql55-5.5.53-1.ius.el6.x86_64
   2. PHP: php54-5.4.45-1.ius.centos6.x86_64
   3. Httpd: httpd-2.2.31-1.mr.el6.x86_64
   4. Lighttpd: --uninstalled--
   5. Nginx: --uninstalled--
   6. Qmail: qmail-toaster-1.03-1.3.55.mr.el6.x86_64
      - with: courier-imap-toaster-4.1.2-1.3.20.mr.el6.x86_64
   7. Dns: bind-9.9.7-1.mr.el6.x86_64

D. Php-type (for Httpd/proxy): mod_php_ruid2

E. Memory:
                total       used       free     shared    buffers     cached
   Mem:          4024        486       3537          6          0        239
   -/+ buffers/cache:        246       3777
   Swap:         4060         62       3997


Also checking in /var/logs/maillogs, I see this error -

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Jan 18 01:35:50 server root: sendmail: CALLER="/usr/sbin/httpd" PWD="/home/trophy/trophy.com" BAN="no"
Jan 18 01:35:50 server send: new msg 110234671
Jan 18 01:35:50 server send: info msg 110234671: bytes 387 from <anonymous@webmail.vikalp.pro> qp 3168 uid 7802
Jan 18 01:35:50 server send: starting delivery 4: msg 110234671 to local laps.in-principal@laps.in
Jan 18 01:35:50 server send: status: local 1/10 remote 0/60
Jan 18 01:35:50 server send: delivery 4: deferral: /bin/sh:_/home/vpopmail/bin/vdelivermail:_Permission_denied/
Jan 18 01:35:50 server send: status: local 0/10 remote 0/60

Any help will be most appreciated.

Many thanks/

[MRatWork]

Try 'sh /script/fix-chownchmod; sh /script/fixmail-all'.

[Vikalp_C]

Try 'sh /script/fix-chownchmod; sh /script/fixmail-all'.

Done as instructed. Not getting that previous error this time but mail is not getting delivered either.
Getting this in /var/log/maillogs -

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Jan 18 14:14:43 server root: sendmail: CALLER="/usr/sbin/httpd" PWD="/home/trophy/trophy.com" BAN="no"
Jan 18 14:14:43 server send: new msg 110235503
Jan 18 14:14:43 server send: info msg 110235503: bytes 385 from <anonymous@webmail.vikalp.pro> qp 19720 uid 7802
Jan 18 14:14:43 server send: starting delivery 3: msg 110235503 to remote vikalp.ch@gmail.com
Jan 18 14:14:43 server send: status: local 0/10 remote 1/60
Jan 18 14:14:44 server send: delivery 3: success: User_and_password_not_set,_continuing_without_authentication./<vikalp.ch@gmail.com>_173.194.64.27_accepted_message.Remote_host_said:_250_2.0.0_OK_1484729520_v25si11131937otf.28_-_gsmtp/
Jan 18 14:14:44 server send: status: local 0/10 remote 0/60
Jan 18 14:14:44 server send: end msg 110235503

But still not receiving the mail.

Also, my domain registrar has provided me 2 free email accounts and unlimited email forwards, I am using my domain registrar control panel to manage, create and forward emails to my gmail account. Have not created any mail accounts inside Kloxo-MR(if this is of any help)

If I send the mail using Gmail or any other account the mail is getting delivered to my domain email (mail@domain.com) and getting forwarded to GMail too successfully. But if someone sends using the contact form in website(mail() function), mail is not delivered.

Any setting need to be adjusted inside php.ini or something?

Thanks.

[MRatWork]

In many situation, this issue related to 'wrong' hostname and not enable spf in dns.

Inform here your 'hostname; hostname -s'.

[Vikalp_C]

In many situation, this issue related to 'wrong' hostname and not enable spf in dns.

Inform here your 'hostname; hostname -s'.

Here is the output:

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hostname: server.vikalp.pro

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hostname -s: server
I am using DNS templates as provided by my Domain registrars. Don't know where the mail is getting lost.

[MRatWork]

Check your domain to mxtoolbox.com

[Vikalp_C]

Check your domain to mxtoolbox.com

Had 1 error.

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DMARC record missing
How to obtain the DMARC info and where should I add the DMARC record? In Kloxo-MR DNS template or in the domain registrar control panel?

Thanks.

[MRatWork]

DMARC setting not exist in Kloxo-MR 6.5.

BTW, did your domain used external mail server (like google apps)?. If yes, you need setting 'Remote mail' for this domain.

[Vikalp_C]

DMARC setting not exist in Kloxo-MR 6.5.

BTW, did your domain used external mail server (like google apps)?. If yes, you need setting 'Remote mail' for this domain.

No, I am not using any external mail server. Just using the 2 free email accounts and rest email forwarders provided by my domain registrar.