Lemmy Support

No but we did discuss a modmail feature in Lemmy, you might see it become a thing someday: https://github.com/LemmyNet/lemmy/issues/5110

For now either create a post in the community or just contact the moderators individually via Matrix or PMs.

If you go into the community’s sidebar you can see who the moderators are and you can message each of them individually.

There’s no such thing as “modmail”, but you can write to each mod if necessary.