Welcome to Vastspace, provides Reliable Web Hosting since 2014

Welcome to Vastspace


Is SPF important?

SPF is a DNS record to tell other email servers that emails from the designated email servers are permitted. If emails are not originated from the mentioned email servers in the SPF, they are likely impersonated, not genuine or spam emails. At the end of the SPF statement, you will see these syntaxes – ~ ?, the common one is ~ follows by a like this ~a meaning ‘softfail’ marked the email and higher spam score if the email has violated SPF preset in the sender DNS record.

SPF is used to fight spam emails if the emails were sent from an unauthorized mail server with a probably compromised email account. It is easy to explain or interpret to a technical person. However, it is not the case for a non-tech person. For the last 20 years, I have seen many have sent emails using other email servers. These senders have more than 1 email account set in their email client application. Unknowingly, these senders sent out emails using another email server which is not authorized and eventually, the email is marked as spam or bounced.

SPF is effective to fight spam emails. But on other hands, an email can be marked as spam email mistakenly. I have mixed feeling on this. SPF set by the email server admin is used to fight spam emails, however, it can be a double-edged sword in this case. So, it is unsafe to use ‘-a’ but ‘~a’ softfail at least the email will not return in the event if the sender has used the wrong email server to send his or hers’ emails.


Are all webmail the same?

By the name, yes webmail means you can send and receive emails from the browser, from anywhere as long as the device has an internet access. But not all webmails are the same. Some are better, some are boring and some are powerful. For example, the webmail by smartermail in our shared hosting plus is a very nice looking and powerful webmail.

Shared Hosting Plus webmail not only allows you to send and receive email, but you can also do more. Create your contact list shared or personal to save more time and effort sending email to the same recipients. Book a meeting room using the calendar function or create a file folder or keep a note to remind yourselves.  Many webmails are opensource preinstalled with the web control panel and they are free. Thus, they are simple and lack of these functions. Webmail from our shared hosting plus can easily replace your desktop email client applications, like Outlook or Thunderbird.

DNS are they differences?

DNS serves a to resolve a name to an IP, so visitors know where are you hosted. The common records found in DNS are A, MX, CNAME, and TXT. They are responsible for your website and emails. There are free ones and paid ones, any differences? In general, they serve the same purposes. However, you carefully examine, they are different.

DNS is the core of your website and emails deliveries. Without a DNS, your website will stop and your email cannot be delivered even yours servers are working. Many, either do not know what is DNS or neglected the importantness of a DNS.

The keyword is ‘anycast’. Generally, all DNS is round-robin and domain names must have 2 DNS, in the event if one has failed, your website and emails will still work. However, the smaller web hosting providers have only 1 DNS but 2 IP addresses binded to the same DNS.  This is wrong, if DNS stopped, all your websites and emails use these DNS stopped too. So, it is important to have 2 working DNS at least. Today, DNS records are more sophisticated. They are used by many services and served globally, this is why internet in the 1st place. Thus, anycast DNS usually a paid service has become common and important internet service.

What is anycast? Anycast DNS is a traffic routing algorithm used for the speedy delivery of website content that advertises individual IP addresses on multiple nodes. User requests are directed to specific nodes based on such factors as the capacity and health of your server, as well as the distance between it and the website visitor.

There are a few advantages using anycast DNS.:

  • Faster connections – Routing users through the nearest intermediary node minimizes round-trip time (RTT), thereby decreasing the number of hops and reducing latency.
  • Simplified server configuration – Anycast lets a single DNS server configuration be distributed to all of your network nodes.
  • High availability – Advertising an IP address on multiple nodes creates redundancy, thereby providing backup in the event a node becomes overloaded or fails.
  • DDoS mitigation – Anycast provides intrinsic DDoS mitigation by offering failover alternatives if a node is attacked or goes down.

After reading, we understand how important is a DNS. And we use what kind of DNS to make sure our website and emails remain reachable around the world.