strange compile error (?)

[mto9]

Hi all!

At the beginning i will say, that my english is not very good. I am new on forum and i have stupid mistake. I wrote a small project - smtp client. I use Qt Creator and when i compiles my program, he runs and everything is OK (e-mail reach the sender), but when i copy dll files to folder with my application(exe file) and run my application with "system-level" e-maile don't reach the sender :( This is a movie with my problem: http://www.youtube.com/watch?v=XlkLIl2W4CY&feature=youtu.be

[Spitfire]

Does the app work fine in qt creator in both release and debug mode?

Try Dependency Walker (http://www.dependencywalker.com/) and see if any library you rely on is missing.

Another thing that may be the cause is windows firewall, try disabling it and see if that helps.