Hi,

There is a connection between IFSAPP and SFTP server. This connection is to send files from IFS to SFTP location. When I am sending files from ifs to sftp location, I am getting an error HOST KEY sftp02.abergeldie.com is rejected. IP address of IFSAPP middleware server is already added to the permitted access addresses for the host. Host keys on this server are not changed. 

How can I fix this?

What can be the reasons for this?