Yes, seems the same problem. I had to ask the provider, in my case Upcloud, to open it just for relay.
Check this answer by @eris Anyone on Upcloud? Problems with exim smtp timeout - #3 by eris
Yes, seems the same problem. I had to ask the provider, in my case Upcloud, to open it just for relay.
Check this answer by @eris Anyone on Upcloud? Problems with exim smtp timeout - #3 by eris