WHM - LINUX FEW TASK FOR LOW PRICE

1) I need to get fix mail feature on my linux - Using WHM and getting to much random emails on my mail example "Cpanel::Exception::HTTP::Network/(XID ebksm4) The system failed to send an <abbr title="Hypertext Transfer Protocol">HTTP</abbr> “GET” request to" 2) Fix mail server 3) I just mess up with server and install many things which is not use for whm so i want to keep my server clean for whm use only Looking for lowest price and someone who can do remotely