Our primary internet connection went down again (nothing to do with ASSP) which gave me the opportunity to replace 16270 with 16271. Nothing like making lemonade out of lemons...
The same email now took only 269 seconds. That's about 15x longer than with TLS off, but WOW that's way better than it was before. I also tried with the blank cipher list, no notable difference And with the SSL buffers set to 0 (64 MB), again without a speed difference. SO- you've made a real difference here!! Is there more optimization to be made? The rub is that the exact same message sent through Outlook.com to us, took exactly 30 seconds, just a 50% overhead when compared to the 19 seconds for a non-TLS message of the same size, instead of a 1500% overhead for encryption when receiving from google. *Is there some magical debug switch that I could turn on to see what encryption Outlook.com is using and compare that to what Google's connection to us with?* I think prohibiting whatever the slow cipher that google's using (probably a really strong one) might make the final bit of difference. I'm breathing so much easier now!! Thank you. On Tue, Sep 27, 2016 at 2:08 PM, K Post <nntp.p...@gmail.com> wrote: > Despite all the problems we have with personalities and policies in our > organization, the infrastructure is pretty solid. MTU's are set correctly, > no fragmentation, no jitter. There's low latency across the board, and > really low bandwidth usage. If we sent 1000 mails a day, it's a lot. > > ...and yes, they even pay their bills, though not me very well :) > > I think it's which SSL algorithm is being used that's at least partially > to blame. I have: > SSL_Version: SSLv23:!SSLv3:!SSLv2 > SSL_Cipher_list: kEECDH+ECDSA:kEECDH:kEDH:HIGH:+SHA:+RC4:RC4 > :!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!DSS:!PSK:!SRP:!kECDH:! > CAMELLIA128:!IDEA:!SEED > > I tried the default wih SSL_Cipher_List blank before, I don't think there > was a difference (but I've played with so many settings, I really don't > remember) > > And last, on the SSL buffer size. If set to zero in the gui, on windows > 2012, it says in green that it's set to 64 MB. I follow what you're saying > about it readying 4x 16 Kb without a loop cycle. Is that a good or bad > thing though? > > >
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