Long time listener, first time caller, love the show - err: long time POP Peeper user, first time PP forum poster, please forgive any gaffes!
I noticed when I upgraded to POP Peeper 5.0 - a nice upgrade, completely worth the price! - that I was having problems on a couple of my RSS feeds. Some of them returned errors every time, no matter what, so I finally dug into it this week.
(FYI: I have worked in corporate IT security for a... umm long time and have a fair background in encryption.)
What I did was use Wireshark to take a packet capture on my computer when POP Peeper was checking messages/RSS feeds. Then I went into one of the feeds that was throwing errors and copied the feed URL:
- https://www.wildelifecomic.com/comic/rss
- I used nslookup to resolve www.wildelifecomic.com to it's IP address (as of today at least): 23.226.68.74
- I set this as a filter on the capture: ip.addr == 23.226.68.74
Specifically, POP Peeper needs to support ECDHE using RSA in Galois/Counter mode, with SHA256 or SHA384 hashes:
https://ciphersuite.info/cs/TLS_ECDHE_R ... CM_SHA256/
https://ciphersuite.info/cs/TLS_ECDHE_R ... CM_SHA384/
According to the SSLLabs report, this has been supported since Android 4.x, Chrome 49 in XP, Firefox 47 in XP, etc. so it is not a super-recent cipher. How can we get this change added into POP Peeper, or if it is a configuration case, configure POP Peeper to do so?
Thank you,
Rick