XCloner backup log emails rejected. Sender: nobody@noreply.com

XCloner Joomla and WordPress backup notification emails are not beng delivered. Postfix Mail logs (/var/log/maillog) shows that email was bounced by Google because of sender's domain noreply.com

Feb 20 21:41:50 localhost postfix/smtp[48976]: DCE8DE03ED13: to=<This email address is being protected from spambots. You need JavaScript enabled to view it.>, relay=gmail-smtp-in.l.google.com[74.125.71.26]:25, delay=0.51, delays=0.03/0.01/0.2/0.28, dsn=5.7.1, status=bounced (host gmail-smtp-in.l.google.com[74.125.71.26] said: 550-5.7.1 Unauthenticated email from noreply.com is not accepted due to domain's 550-5.7.1 DMARC policy. Please contact the administrator of noreply.com domain 550-5.7.1 if this was a legitimate mail. Please visit 550-5.7.1  https://support.google.com/mail/answer/2451690 to learn about the 550 5.7.1 DMARC initiative. x18si5696633wrx.115 - gsmtp (in reply to end of DATA command))

apache_request_headers() - Call to undefined function apache_request_headers()

Issue

After moving PHP application to 1&1 CentOS 7 VPS server PHP function apache_request_headers() stopped working.

With PHP display_errors set to On, following error is displayed: Call to undefined function apache_request_headers()

With display_errors set to Off, it simply throws: 500 Internal Server Error

WordPress Admin - Sorry, you are not allowed to access this page

Issue

After moving a WordPress blog to a new server admin user can no longer access admin control panel. The same user can login to the website front-end with no issues, but as soon as he tries to access wp-admin page following error is displayed:

Sorry, you are not allowed to access this page.

WordPress XCloner backup creates 2kb .tar backup file

Issue

XCloner Backup processes WordPress site backup without any errors but produces only a tiny 2KB .tar archive with a single file inside (administrator\backups\index.html). The strange thing is that XCloner backup log shows that thousands of files were detected and processed.