I always want to select "Y". This is because the hostkey are always changing.If you trust this host, press Yes. To connect without adding host key to the cache, press No. To abandon the connection press Cancel.
(Y)es, (N)o, C(a)ncel, (C)opy Key: Cancel
Yes, I have checked https://winscp.net/eng/docs/faq_scheduler and hostkey documentation but I can't found what I need.