Been flooded with McCaffee and Norton anti-virus spam, Ace Hardware and lots of other shiite.
Was blocking senders until they started spam without a return address to block. Looking at the raw email info to find an address to block yielded nothing.
Did something happen to open the gates for these bastards? Like some anti-spam laws sunset?
I use the filters included with the Spectrum/Time-Warner Webmail interface. I had them set up for several years, adding more blacklisted words in the SUBJ and FROM fields to reduce the number to pretty much 1-2 SPAM messages per month getting through.
Then I started getting valid messages filtered out. I think some of the senders changed something that started getting their emails filtered. It took a long time before i gave up looking for the false-positive filter setting, so I deleted all of them and started over.
After 2 months of wading through hundreds of SPAM emails per day, I finally have it fine-tuned.
I'll be checking the webmail inbox and trash for false positives and misses, but so far, it's working great. I get about 75-100 SPAM messages directed straight to the TRASH folder, so it never arrives at my home mail client (Outlook).
If you're doing the same types of filters, try auto-deleting anything not coming from a .net or .com account. I found the worst offenders come from domains ending in names:
.ca
.cam
.space
.cz,
es
.za
.work
.click
.uno
.shop
.xyz
.cfd
.today
.az
.world
.info
.in.net
.digital
.fun
.br
.res
.id
.beauty
.usa.com
.defence
.defense.com
.icu
.charter.net
.ipxo
.hawaii.com
.sa.com
.sbs
.buzz
.cloud
.mom
.usa
After adding all of those to my filters, the vast majority of SPAM was trashed on delivery. I have the filters set to go straight to my Trash folder on Spectrum. Then I can quickly browse for non-Spam, and click the "purge" button. Ready for the next batch! I think Trash is the only folder you can purge, which means you aren't stuck deleting 100 messages one page at a time, which is about 24 messages.
One thing causing false positives was having a filter set for a string that might be part of a valid sender's address. To fix that, if it's the end of the domain name, I added the ">" bracket that's part of the "From" string. That targets text at the end of the address, not just any part of it.
One thing SPAMmers started doing is using tricks like aliasing the From with another field. That let's the message look like it's from a legit source, but sent from another server.
SPAM filters at the ISPs are better now, but the SPAMMERS are always finding ways around them. Try contacting your service provider, and see if forwarding them some examples will help them tweak their filters to help us all.