Written by Julia G
SPF stands for Sender Policy Framework, and it is an email authentication protocol. The purpose of SPF is to check whether the email was sent from the person it says it is from. We showed how to create an SPF record and deploy it. And if you are reading this article you’ve probably encountered some issues with that. So let’s …
Written by Julia G
There are many variables involved when we talk about email deliverability. Today we will concentrate on email authentication, because it has its influence on whether your email gets blocked, will land in a spam folder or an inbox. How? It proves you are a trustworthy and legitimate sender, or otherwise. You should remember that it is not enough to just …
Written by Julia G
A crashed server is not a matter of ‘If’ it is a matter of ‘When’. Our time and age do not allow much room for hesitation, and every successful business must constantly be present online. So an unavailable website, as you will see later, can result in millions of revenue losses. That is why website uptime monitoring is crucial for …
Written by Julia G
The worst thing for an email marketer is to realize that their best offers and high importance emails are not delivered to the recipients’ Inboxes and are lost in Spam. When an email is filtered to the Spam folder, it’s not because a mailbox provider has a grudge against YOU. It’s because the email met one or more criteria of …
Written by Julia G
When you run an email test with GlockApps, oftentimes you may be frustrated by a warning that your sending IP address is blacklisted. Blacklists can work as a firewall on the path of your messages to the recipient’s mailbox so that your legitimate emails never reach the destination. At the same time, blacklists do a good job by blocking viruses, …
Written by Julia G
Blacklists are becoming active players in the email marketing field. A blacklist can be viewed as some kind of a guard that will allow certain emails to pass and stop others. From one side, blacklists do a good job by protecting email users from various kinds of spam and scam. On the other side, legitimate senders often suffer from the …
Written by Julia G
Email security is a big concern for many Internet users. Individuals and organizations need to protect their mailboxes from a huge volume of spam and phishing emails they receive daily. This is exactly what Mailspike has to offer. What is Mailspike? Mailspike is a free blacklist created of the IP addresses which have a bad reputation. Most of the IP …
Written by Julia G
What is IvmSIP? Invaluement is a combination of three blacklists that can be used as an “add on” in most spam filtering systems. The data collected by Invaluement allows pinpointing the most elusive spam that often bypasses many spam filters. Invaluement includes such blacklists as ivmURI, ivmSIP, and ivmSIP/24. InvaluementSIP (ivmSIP) lists the IP addresses that send an extremely high …
Written by Julia G
The year 2020 tricked us a lot so the GlockApps team has decided it is time for a treat! In our previous post, we’ve presented our idea (and a free tool) to help you trick-or-treat online. If you haven’t used it yet – go ahead, there’s not much time left! And if you feel like being featured on our Facebook …
Written by Julia G
Too many holiday celebrations have already suffered from this year’s pandemic, so our team has decided: enough is enough! Just like us, you have probably anticipated the candy, costumes, parties, and other festivities. So we thought, how could we boost that Halloween spirit in the context of staying at home to be safe? The answer was obvious: email! There are …