Mailverifier is very easy to use and it is very reliable. I'm using it for my company for business and we don't have any issues with using the service. It is very affordable and reliable. I haven't found any downsides to using the service. I highly recommend using Mailverifier. Mailverifier is very reliable and it is very easy to use. We used it for our company for business and it has been very easy to use and very reliable. I like that they can help you verify your emails, but if it's not working correctly then there is nothing to do about this problem other than leave them or get another provider! Not much else as far of complaints go with freemailverify so no dislikes here either; however some people may have issues receiving their verifications through mail which would be disappointing since those are important communications from companies in order receive payments via PayPal etc..