We are having problems sending emails to some domains. I've checked our public ip against spammer blacklists and it doesn't appear. We have regular virus scans on all systems which haven't detected anything. I suspect this problem is being encountered because we send out a weekly group of bulk emails to let our customers know what we have available- a lot of the recipients have to get them out of their spam folders to make an order and now we are seeing quite a few bounce back altogether. My 1st thought was to change our public IP address anyway, as there it must be blocked somewhere that I've not found, and then( as I understand) there is a way to change outlook settings so when bulk emails are sent they don't all send at once ie so we don't just get blocked again
Before I do that, I wanted to check if that might create other problems I hadn't considered, or indeed if there are some other things I should try first?
FYI our ip address is static and shared by 4 different computers on our network
p.s I did look up similar questions but I didn't find one exactly the same as ours - apologies in advance if there is one the same you've already answered