Question – https://www.quora.com/How-exactly-does-a-domain-name-email-get-blacklisted-Whats-the-trigger-or-what-is-responsible-for-it
Check:
https://www.dnsbl.info/dnsbl-list.php
Email needs to have rDNS and FCrDNS, so that it is not blacklisted.
What is rDNS?
What is FCrDNS?
Remove from blacklist
https://www.ndchost.com/wiki/rbl/yahoo
Spam check: https://www.spamhaus.org/lookup/
Domain health check: https://mxtoolbox.com/domain/
After fresh install wampserver, some configurations need to be changed, or you’ll get 403 Forbidden error for setting up virtual directories (url links for local machine)
C:\wamp64\bin\apache\apache2.4.17\conf\httpd.conf
<Directory />
AllowOverride none
Require all denied
</Directory>
change to:
<Directory />
# Added to allow .htaccess in individual site folders to override
AllowOverride ALL
#AllowOverride none
#Require all denied
</Directory>
Other minor changes, refer to the httpd.conf of the previous version and do a side-by-side comparison
Installed the latest wampserver 2.5 and setup the virtual host files.
For virtual hosts config, added these lines into
conf/extra/httpd-vhosts.conf
Solution: http://stackoverflow.com/questions/15717739/wamp-server-virtual-hosts-configuration
#
# Use name-based virtual hosting.
#
NameVirtualHost *:80
Encountered Forbidden error 403 when I typed in the URLs.
Solution: http://stackoverflow.com/questions/10859271/wampserver-403-on-named-virtual-hosts-outside-of-www
# Deny access to the entirety of your server’s filesystem. You must
# explicitly permit access to web content directories in other
# <Directory> blocks below.
#<Directory />
AllowOverride none
Require all denied
</Directory>
Since it is a local testing machine, I figured following this step would be ok even though on a live machine it would be insecure.
There is an alternative answer that doesn’t require “allow all” in the source link.
After commenting out, faced another issue Internal Server Error
Solution: http://serverfault.com/questions/529007/apache-htaccess-ifmodule-not-allowed-here
# Added to allow .htaccess in individual local site folders to override
<Directory />
AllowOverride ALL
</Directory>
Before raising the alarm, do a check to find out if the website is really down by testing the link at http://downforeveryoneorjustme.com/
Check these useful sites and links to diagnose website down issues in order to arm ourselves with enough information to ask hosting providers to do something about it when they aren’t being very helpful.
1) Smashing Magazine step-by-step guide:
http://www.smashingmagazine.com/2010/12/13/what-to-do-when-your-website-goes-down/
2) Hostgator detailed a good explanation and useful links to 2 free online network tools to aid in dianostics:
http://support.hostgator.com/articles/hosting-guide/lets-get-started/dns-name-servers/where-can-i-view-if-my-name-servers-were-setup-correctly-and-what-ips-they-currently-use
3) Online tools
Leaf DNS http://leafdns.com/
Network-Tools.com (for advanced users) http://network-tools.com/
4) VirusTotal
Created by the guys at Google, an online too that checks for virus that may have brought down the website.
https://www.virustotal.com/en/