What is greylisting?

Greylisting is a new popular feature for spam fighting, similar to whitelisting and blacklisting. Each time a mailbox receives an email from an unknown contact (IP), that mail is rejected with a “try again later” message. This means that all mail gets delayed at least until the sender tries again. This is where spam messages […]

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Configure SPF, DKIM and DMARC records

In order to secure your e-mail service and make sure that you won’t have issues with e-mail spoofing, you need to set SPF, DKIM and DMARC records for your domain. SPF – You can enable SPF in cPanel -> Email Authentication -> Enable in the SPF section DKIM – In order to enable DKIM for your domain go to cPanel -> Email Authentication -> Enable in the […]

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How to force SSL with .htaccess

You can force an HTTPS connection on your website by adding these rules in your website’s .htaccess file: 1 2 3 RewriteEngine On RewriteCond %{HTTPS} off RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]   The .htaccess file needs to be located inside the site’s document root folder. If your website is in a sub folder, then the .htaccess […]

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SMTP Ports

The standard port used for SMTP connections is 25. VALVPS also offers alternative SMTP ports – 2525, 587. For secure SMTP over SSL you can use port 465. Many Internet service providers however block port 25, that’s why we recommend using one of the alternative SMTP ports.    

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