> >>>> I have an interesting problem: I am building dovecot packages for Ubuntu >>>> since 10.04. Never had bigger trouble with it. Now since 2.1.6 or 2.1.7 (I >>>> can not say more precisely), Thunderbird 10ESR and Outlook 2010 can no >>>> longer use 143/TLS correctly. Automx delvers 143/TLS and Outlook tells me >>>> that it can not create a secure connection. I changed automx to use >>>> 993/SSL and everything works. Under Thunderbird 10ESR, I get a box that >>>> tells me that I need to change settings. When I sent mail, TB told me that >>>> it could not copy the mail to the sent folder. I also changed to 993/SSL >>>> and everything is perfect. >>>> >>>> At the other and, Apples Mail.app and iOS devices work perfectly over >>>> 143/TLS. So my guess is that it has to do with OpenSSL. Did something >>>> change in dovecot concerning TLS? Can I change options in the built >>>> process? >>> >>> What was the Dovecot version you were using previously which worked? >> >> I am not sure which version worked. My best guess is 2.1.4 or 2.1.5, because >> I skipped 2.1.6. But 2.1.6 has the same issues, as my friend Uwe did report >> the same issues with that one. >> >> @Robert: I am talking about Ubuntu 10.04, so this can not be a problem with >> openssl itself, as that did not change > > I've seen problems with all kinds of clients and servers, even with Dovecot > 1.x where TLS/Auto settings fail and I simply always instruct end users to > explicitly choose 993/SSL to get a good TLS connection reliably. > > It seems like it might not be so version-specific or even anything wrong at > the server end.
I never had such problems before. When I was coding automx, all tests succeeded with Dovecot and Outlook 2007/2010 and also Thunderbird was working perfectly. So in my opinion this is a version specific problem, as it started somewhere in 2.1.4+. I am using Dovecot since 1.0 (something like this) and never had 143/TLS problems Best regards Christian
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