Hi, if you use IMAP, it will synchronize your emails – meaning that removing them on Outlook will remove them on Hostinger mail and vice versa.
The alternative would be using POP connection, but bear in mind that if you use POP and you open your email on Hostinger mail, it will not arrive to your Outlook (and vice versa). Additionally, using POP would mean that if your emails arrive only to Outlook and get removed from there, they are not possible to recover anymore.

if I delete mail in my Hostinger account then my mail also delete from my Outlook

pls. help me that if I delete mail from my hostinger webmail then mail not delete from my outlook

Hi Saai,
Please contact Customer Success to help you solve this.
🙂

Hi there, Christian 😉

You can find your IMAP and SMTP details from your Hostinger account, like this!