Quick tip for Apple’s Mail software: you can have multiple “from” easily – just enter them in the account setup “from:” separated by commas, like this:

tracy@someplace.com,  tracy@elsewhere.net, tracy@overthehill.org

Doing so will create a popup menu below your “Subject:” line, and allow you to choose which one to use.

Handy, for example, when some services or lists  only recognize one particular address, and it’s not the one you usually use.

HTH

Tracy