Why cant my IMAP email send emails from out-of-office internet connection??

EM Client wont send emails from my IMAP email when Im at home. However, when I use my connection at work, the emails get sent quickly and effectively.
Error: “(SMTP)attempt to connect to (IMAP email) has failed. The cause might be the server is down or the setup is incorrect”

How can I fix this?

Send us your logs please: go to menu Tools->Settings->Advanced->Logging and check “SMTP” under the problematic account. Then restart eM Client, try to simulate the issue and send us (with reference to this topic) the logs using the same logging settings window. Thank you.