Cannot send emails from iPhone with outlook.com

I have em client installed on my Mac and everything is ok. On my iPhone within the em Client I can send mails from another account but not from outlook.com.
I have tried all with air sync suggestions but nothing is helping. Any suggestions?

Do you see any errors in Settings - Operations - Errors / logs ?

It states there is a problem and the. All is written in English regarding the AirSync

I had that exact error when i initially added my outlook.com personal web to my iPad and after removing and readding it three times using the automatic account wizard, it finally added and received and sent ok without those AirSync errors.

I suspect it’s some Microsoft server glitches with AirSync, as I did nothing different when adding the Outlook account into eM Client each attempt.

So I can only suggest to try again and remove and readd your Outlook account via the wizard.

These are the eM Client IMAP, SMTP & AirSync iOS settings I ended up with once it added ok.