SPF Troubleshooting: SPF record won’t validateHere is a short list of common problems (and their basic solutions) one may encounter while trying to validate SPF records.Exceeding the limit of DNS lookups. Keep in mind that there are only 10 DNS queries. The most common problem here is using a lot of..

Gmail has over 1.8 billion accounts worldwide and the number keeps growing. You’re probably one of them and so am I, my team, and probably the majority of Mailtrap users too. Gmail has gone through a lot of changes since it was first tested in 2004. One of them was about simplifying the compose window and removing the good old HTML editor. It doesn’t mean, however, that HTML is no longer supported by Google – it’s just a bit trickier to send HTML email from Gmail. Let’s see how it works.

Picking the right port for an email transmission can make the difference between your email being delivered or not. Luckily, it’s not something you need to think about a lot as your email provider does it for you. And they care about the successful delivery as much as you do. 

Sometimes, however, the default SMTP port might not guarantee the best delivery. This is when knowing what the alternatives are might really help. Let’s start then!