I send files to agencies like SS, Dreamstime etc. Can I sell files which have been already downloaded on Alamy? What if someone wants to buy a photo there on RM licence when that photo have been sold several times as an RF?

Thank you

No, it doesn't necessarily mean you sell all the rights, just that you've kept track of what's been sold where so that buyers can know things like "Did my biggest competitor already use this image in their ads".

You cannot legitimately offer an image for RM if it ever sold anywhere for RF. You have no idea who the buyers were or where they used it.

You can sell RF on Alamy, but they don't want you to sell images that are on the micros (they don't outright ban that practice as far as I remember, just discourage it). Photoshelter Collection has made it explicit that they don't want images sold there as RF to be selling for substantially less elsewhere.

As already said, if you have sold an image as RF (Microstock) you should not offer it as RM on any site.

If you want to sell an image that has sold as RF on any other site as RF that is fine.

Now Macro site buyers would not be happy paying a Macro price say $200 for an image they might find on microstock for $2, they would likely claim a refund if they found it, on the macro's like Alamy it could be 30 - 60 days for your money, on a "pay when paid" basis, after use you get paid, it is not a instant payment scenario, you get a purchase status like  Purchased, Received, Cleared and Paid.

So if the image has downloads on a microsite but is no longer available, there is nothing stopping you uploading it to a macro site, but the buyers are different and are not looking for microstock.

The agencies do not like the same image on micro and macro, and some like PhotoShelter have restrictions, it would be seen as un-professional of a photographer to have the same image on micro and macro.

David