yeah, i like the email for each picture, or at least one email that gives an overview of all accepted/rejected

Actually I like LO which says "we took them all"

dbvirago it seems to confirm that they have a mix-up in their photographer's email notifications, or it's manually done by the approvers, and then mistakes can be made.
Since I track the pictures individually, I would prefer to receive a notification email for each photo, whether it may be an individual or group email.  Individual would still be my preference:  an approver reviews the picture, decides a result, the 'click' decision automatically sending an email to the photographer.  We then don't have to wait for a last pending one to know that everything else has already been approved.  It also gives a hint about the ones they are not sure about, for whatever reason.
123rf is the only site where there is an individual reference when you submit, and then another new publicized number when the photo is approved.
MSP and SX don't even send a message about the results, so knowing with 123rf that some anonymous pictures have been approved isn't that helpful, but is a first step in the right direction.  I hope that they will be more precise in a near future

SS, StockXpert, DT, LO, & BS  might beg to differ. Oh well, it's their site and their call. However, I'm thinking at this point about just deleting the whole batch and walking away.   If I'm going to run a 50% rejection on my hottest selling pix, what's the point of uploading my portfolio?

Playing devil's advocate for a moment... I've noticed that some photos sell better on one site than they do at another, I'm sure you have too. This could be to differences in the buyers each site attracts or differences in the competition at a particular site. 123RF may just be aware of these factors and reject images in segments that have traditionally been under-performers or over represented.

That aside 123RF actually doesn't reject that much. At least they've accepted ~93% of what I've sent them. They're not great on sales though. I suspect if you keep submitting your percentage accepted will go up quite a bit. Whether that equates with it being worth your time to submit considering the sluggish sales is unknown.

As for their email system. I've never been able to get an email from them. They're in my whitelist and my ISP says they aren't blocked but I haven't been able to get 123RF to look into the matter. Really quite frustrating. StockXpert also had the same problem for awhile but they fixed the problem on their end after a few months with only a couple of reminders to do so.

Shut my mouth!!  Pretty sad when you have to prove yourself wrong....  all that complaining I did above....   yeah, they only took 5 pix, but then, the first day they were posted I sold 2 of them...  go figure...  I suppose I'll slap some more up there on 123.