According to FAQ, you might be running into an issue with Spamcop. https://riseup.net/en/spam#spamcop
If you're describing a situation where you're sporadically not getting a few email's per day as opposed to getting nothing than you might want to check if your ISP uses Spamcop.
riseup is useless garbage. I asked and asked the people RESPONSIBLE to fix the problem, and they refuse. the problem is NOT mail bouncing back, the problem is MAIL DOES NOT GET DELIVERED AND IS NOT BOUNCED BACK. NOR IS SENT MAIL SAVED ANYMORE. I SIMPLY HAVE STOPPED USING THIS SHITTY SERVICE. SORRY I GAVE THEM MONEY.
Unfortunately, we do not have many in our collective that can speak your language. Would you mind if we used an online translation tool to help us understand one another or could you simply use English?
Call Bigpond Email Help Number Australia for Password and Account recovery problems. Get Technical help and support from our Bigpond Email Support Number 1-300-190-431 in short time. Call at our 24/7 toll-free number to fix issues.
for more info: http://www.bigpondemailhelp.com.au/
I'm only at 6% of my quota. I got an email I just sent to myself. But I'm not getting emails from other people. Trying to chair a taskforce and facilitate trainings when your email is not delivering stuff is not fun and is also embarrassing as I have no good explanation for people. And I can't set up mobile banking I stupidly used this email for my new bank account and the bank won't send the temporary password to an alternate email, and the email won't arrive!!! Frustrating that they are not taking ownership if this many of us are having this issue :(