Description: When posting an image by email, the image is automatically placed in a gallery called "LJ_emailpost". It would be handy if a gallery could be specified in the posting email so that images could be placed directly into other galleries.
Suggestion: Add a header option such as lj-gallery (or fb-gallery?), similar to lj-userpic and lj-security, which gives the name of a gallery. If the gallery doesn't exist or isn't specified, use LJ_emailpost.
Complication: Should the header option allow gallery shortnames, or only actual names?