We have all been there: a publisher that just ignores your requests to be removed from the informative emails but keeps sending you invitations for conferences and new fancy journals. Hard to imagine, but just imagine you are no longer interested in sharing your valuable expertise with this publisher... doable? If you have Gmail, it is.
Search for all emails from the domain you like to ignore. I pick a random example domain for no particular reason: from:(*@omicsonline.*). Then, select the drop down icon at the right side of the search box:
You then get a dialog like this, where you select "Delete it" and "Also apply filter to...":