I'm not receiving all my emails on my phone, but I can receive them on laptop.
I've checked my settings and they look OK, I am receiving some e mails, just not all.
It would still help to share those settings (appropriately redacted) here.
Which operating systems, devices and email clients are involved?
Are there any shared attribute amongst the messages that cannot be seen on the phone, for example sender's domain or subject text?
If you sign into webmail do you see the same messages as those found on your laptop or phone?
Apologies for late reply, I think it's sorted now. It seems it was the actual app not working as reading reviews it was happening to others.
App has been updated and I now seem to be receiving mail OK.