I've just got bad experience of using vultr. I'm using wordpress, I can't use contact form or get any notifications about my website by email. After investigation, I submit ticket then got answer that they block all sendmail ports. The point here is that they can't limit sending email but blocking all. Then request users many paper works. I'm using this over 3 months quite happy with the speed, networks... but at last I think I got to move another one. Just to share all of you before choosing your hosting.