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Incoming And Outgoing Mail Server

- 07/02/2016 05:46:34

i got this error while setting up outgoing mail 110 Connection timed out 
i have tested it with gmail server all works fine but when i do the same with my company domain  it fails  
i have for exemple i set up incoming and outgoing mail correctly , alias domain : 
i can't find the problem anyone lead me to the solution plz

my best regards