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On Fri, 11 Oct 2019, @lbutlr wrote: >>> Oct 09 16:02:50 imap-login: Info: Aborted login (auth failed, 5 attempts in 33 secs): user=<myuser at covisp.net>, xx.xx.xx.xx, PLAIN, TLS > > This turns out to have been caused by the MUA attempting to connect to > port 25 (despite clearly showing port 587 in the MUA settings). Thanks > to Mac/iOS account syncing, merely trying

...correct" configuration. (This happens, > for example, when there is a transient network problem). You need to > disable "Automatically manage connections" to stop these mail readers > from wandering around and strictly use your settings. There is no such setting in iOS or iPadOS though, and setting the explicit port for SMTP and.or IMAP advanced settings didn?t change the port it actually tried connecting go until I removed the account and re-added it. No problems on iOS 12 or macOS 10.14 so far. > This behaviour can be exploited to grab credentials using a MITM attac...

And which email clients can do this? A defacto standard needs to be adopted. If I don't provide SPF or DKIM, I am likely to be deemed spammy, hence a defacto standard has been established. I don't see this with TOTP. I'm all for TOTP, but I'm not going to code my own. ? Original Message ? From: sebastian at sebbe.eu Sent: October 27, 2020 5:56 PM To: dovecot at

Hi, Have anyone else experienced problems using Dovecot with the mail app in beta releases of iOS/iPadOS 13? TLS is failing for my, it have worked fine for years and I am on the latest Dovecot version now, it works fine with older clients but not with the ones upgraded: Sep 04 19:49:16 imap-login: Debug: SSL: where=0x10, ret=1: before/accept initialization Sep 04 19:49:16 imap-login: Debug: SSL: whe...

> Le 4 sept. 2019 ? 20:11, Henrik Johansson via dovecot <dovecot at dovecot.org> a ?crit : > > Hi, > > Have anyone else experienced problems using Dovecot with the mail app in beta releases of iOS/iPadOS 13? > > TLS is failing for my, it have worked fine for years and I am on the latest Dovecot version now, it works fine with older clients but not with the ones upgraded: > > Sep 04 19:49:16 imap-login: Debug: SSL: where=0x10, ret=1: before/accept initialization > Sep 04 19:49:16 im...

...on. (This happens, > > for example, when there is a transient network problem). You need to > > disable "Automatically manage connections" to stop these mail readers > > from wandering around and strictly use your settings. > > There is no such setting in iOS or iPadOS though, and setting the explicit port for SMTP and.or IMAP advanced settings didn?t change the port it actually tried connecting go until I removed the account and re-added it. > > No problems on iOS 12 or macOS 10.14 so far. > > > This behaviour can be exploited to grab credential...