Conectivity test stuck

Hey I think I need help

Problem with not sending emails with Contact 7 is main problem but reading some support tickets this plugin was solution for them.

So I installed it and clicked on Wizard and now I’m stuck here https://prntscr.com/8m668i and it’s like this 25 min now… how long should it take or I’m doing something wrong ??

https://www.ads-software.com/plugins/postman-smtp/