serverkid

close the files (login, char, map) before recompiling

Version 1.6.0Per request, added support for providing the server with miscellaneous user information (requires user consent once). When enabled, requires modification of the login packet code on server-side to extract the url-style parameters from the t1 (token) field.

You could enable DNS support on your client and configure a subdomain to point to your IP and/or use a VPN. I'm sure there are better methods now, but one popular method I recall is the use of Hamachi to create a VPN and have players connect with that IP address.
 
Example:
Update all of your public IP address configurations to server.myRO.com, which points to your computer's public IP address, 87.65.43.21 - doing so allows you to update where your subdomain points to with ease, rather than updating a bunch of files.; alternatively, use Hamachi to create a VPN and generate an IP address for players to connect to, and use that for your public IP address settings.
 
The best solution? Lease space with hosting providers to suit your needs. I prefer BuyVM.net, but if you don't know how to manage or set up a server, I suggest you try hosting services that will set up your server and provide support. For a list of services that are backed by our community, check out our Paid Services section.

you can always check doc/script_commands.txt

Use message. I'm assuming your script contains a variable in which the target player's name is stored (i.e. .@playerName$), so you can include a message for them after the script has sent a gift - regardless of whether or not they are online (if they're online, they'll receive it).
 
Example:
message .@playerName$, "A GM has sent you a gift. Please relog to receive it.";

http://herc.ws/board/tracker/issue-7502-disguise-bug/