On 10/23/19 3:45 PM, Brandon Long wrote:
On Wed, Oct 23, 2019 at 7:00 AM Doug Royer via mailop <mailop@mailop.org <mailto:mailop@mailop.org>> wrote: On 10/22/19 3:36 PM, Daniele via mailop wrote: > It looks like Microsoft, with its long history of questionable practices, has recently developed a new strategy for tearing down its weaker competitors. Not directly related, but gmail has been putting MANY more false positives in the spam folder. I used to get 1-3 per week. Now false positives are closer to 60 a day. And MOST (about 80%) of them have the X-Microsoft headers. On the first day 99% had the text portion ONLY base64 encoded, not text/plain alternate. Only 1 was DANE related. It may be people are tweaking with headers. And I think many are tweaking their filtering rules to adjust to the changing spam. It used to be that 100% of the email I got with ONLY base64 encoded text, was spam at it attempted to bypass filters. I am guessing that gmail had noticed a similar trend and may be filtering those as spam. And why does Microsoft need about 60 X-Microsoft headers per email? Maybe it is time for the IETF to deprecate X- headers.
Thanks for the feedback!
..... Just a guess.... They aren't for you, are they causing your system issues?
No clue if they are the reason gmail tags them as spam. I am posting the changes I see, and gathering information to try to find a pattern for the false positives. That is one of the patterns I see. I do not know if it is a cause or unrelated. I get my email via IMAP from google, they are pre-filtered into the spam filter by gmail. I now manually tell Thunderbird to run my message filters on my gmail spam folder multiple times a day to place them back into the inbox or correct sub-folders. The only problem is the increasing number of false positives (many from IETF mailing lists) that show up in the gmail spam folder. I tried turning off all of my Thunderbird filters to make sure it was not happening at my end. Then I started using gmail filtering only. It seems to keep them out of the spam filter (because I check never send to spam with the specified to/from/...). However they show up in my folders but do not show up as new messages. I have to manually click on each of my folders before it shows me new email in that folder. This issue may be some interaction issue with gmail filters, IMAP, and Thunderbird. I am still trying things to figure out what changed. ( may have found this fix) If this all fails, I will run a fetchmail/procmail from the gmail spam folder and have procmail filter IN what I want from the gmail spam filter. This is the basic technique I use for dumber than gmail systems I have to interact with. A bit of sed/awk/scripting and I should be able to import/export filters from procmail to/from gmail. The gmail filters export as XML, so an XSLT script should be able to create a procmail filter that I can use to filter back in the false positives. I have noticed on the IETF, NANOG, and MAILOP messages about similar things. Something has changed. -- Doug Royer - (http://DougRoyer.US) douglas.ro...@gmail.com 714-989-6135 _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
