Issue 6637 in k9mail: Invalid certificate every 24 hours or so in Lollipop

[k9m...@googlecode.com]

Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Product-k9mail

New issue 6637 by JohnHold...@gmail.com: Invalid certificate every 24 hours
or so in Lollipop
https://code.google.com/p/k9mail/issues/detail?id=6637

https://groups.google.com/forum/#!topic/k-9-mail/-ggs6Mo61JA

Hi, this link (above) describes a recurring "invalid certificate" problem.
K9 works fine for 24 - 48 hours and then gives an invalid certificate
error. On clicking through and changing nothing, it works fine for another
24 - 48 hours. I can't confirm the reports that say it is when switching
from network to wifi or vice versa.
Regards,
John

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[k9m...@googlecode.com]

Comment #1 on issue 6637 by ian.kemp...@gmail.com: Invalid certificate

every 24 hours or so in Lollipop
https://code.google.com/p/k9mail/issues/detail?id=6637

After some reading through a number of bug reports, I think this one is
related to or is the same as the following:

https://code.google.com/p/k9mail/issues/detail?id=3444

https://code.google.com/p/k9mail/issues/detail?id=6547

https://code.google.com/p/k9mail/issues/detail?id=6551


Experiencing this problem, I'll add my device and version info:

K9 v5.006
CyanogenMod v12.1 (nightly)
Device: OnePlus 1
Mail server: IMAP

NOTE: Because my incoming server is outlook.office365.com, I'm inclined to
believe the certificate is invalid, self-signed etc.

[k9m...@googlecode.com]

Comment #2 on issue 6637 by ian.kemp...@gmail.com: Invalid certificate

every 24 hours or so in Lollipop
https://code.google.com/p/k9mail/issues/detail?id=6637

After some reading through a number of bug reports, I think this one is
related to or is the same as the following:

https://code.google.com/p/k9mail/issues/detail?id=3444

https://code.google.com/p/k9mail/issues/detail?id=6547

https://code.google.com/p/k9mail/issues/detail?id=6551


Experiencing this problem, I'll add my device and version info:

K9 v5.006
CyanogenMod v12.1 (nightly)
Device: OnePlus 1
Mail server: IMAP

NOTE: Because my incoming server is outlook.office365.com, I'm inclined to

believe the certificate is not invalid, self-signed etc.

[k9m...@googlecode.com]

Comment #3 on issue 6637 by ian.kemp...@gmail.com: Invalid certificate

every 24 hours or so in Lollipop
https://code.google.com/p/k9mail/issues/detail?id=6637

Adding another report that I believe is related:

https://code.google.com/p/k9mail/issues/detail?id=6770

[k9m...@googlecode.com]

Comment #4 on issue 6637 by ian.kemp...@gmail.com: Invalid certificate

every 24 hours or so in Lollipop
https://code.google.com/p/k9mail/issues/detail?id=6637

Another thought: After looking through my local debug log, the error might
be an IO read error that occurs when cellular data or wifi drops
temporarily. The 'fix' might be more graceful error handling in cases like
these? Here's a log snippet:

08-08 13:55:26.336 E/k9 ( 4665): Got exception while idling for
SFSU:Drafts/Thread-275

08-08 13:55:26.336 E/k9 ( 4665): javax.net.ssl.SSLException: Read
error: ssl=0xb4887400: I/O error during system call, Connection timed out

08-08 13:55:26.336 E/k9 ( 4665): at
com.android.org.conscrypt.NativeCrypto.SSL_read(Native Method)

08-08 13:55:26.336 E/k9 ( 4665): at
com.android.org.conscrypt.OpenSSLSocketImpl$SSLInputStream.read(OpenSSLSocketImpl.java:699)

08-08 13:55:26.336 E/k9 ( 4665): at
java.io.InputStream.read(InputStream.java:162)

08-08 13:55:26.336 E/k9 ( 4665): at
java.io.BufferedInputStream.fillbuf(BufferedInputStream.java:149)

08-08 13:55:26.336 E/k9 ( 4665): at
java.io.BufferedInputStream.read(BufferedInputStream.java:234)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.filter.PeekableInputStream.peek(PeekableInputStream.java:34)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.store.ImapResponseParser.readResponse(ImapResponseParser.java:42)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.store.ImapResponseParser.readResponse(ImapResponseParser.java:29)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.store.ImapStore$ImapConnection.readStatusResponse(ImapStore.java:2775)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.store.ImapStore$ImapConnection.executeSimpleCommand(ImapStore.java:2925)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.store.ImapStore$ImapFolder.executeSimpleCommand(ImapStore.java:862)

08-08 13:55:26.336 E/k9 ( 4665): at
com.fsck.k9.mail.store.ImapStore$ImapFolderPusher$1.run(ImapStore.java:3151)

08-08 13:55:26.336 E/k9 ( 4665): at
java.lang.Thread.run(Thread.java:818)