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Question:
Hello!
I have already written to you about this problem. But didn't get any answer. Sometimes, I can't select mailbox. It's a big problem! I can't get new messages from mailbox in this case and don't know how long it will be. We use chilkat library on different computers, with different imap servers. But in all cases we have the same problem - in some time imap client can't select mailbox. It happens without any specific sequences of actions. Any ideas?
I cannot have any ideas without useful information.
Make sure to test using the latest version of Chilkat, and if the problem is with the call to SelectMailbox, then include the contents of the LastErrorText.
I tested imap today and got next results. When I can't select mailfolder I write LastErrorText in to the log file. I got errors in less than 15 minutes in 3 mail accounts. All results the same. LOGS:
test.docs@yandex.ru(17.04.2014 16:32:45): Папка - Новая папка для отправленных, Connected - True, LoggedIn - True
ChilkatLog:
IsConnected:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
--IsConnected
--ChilkatLog
I use only one method for selecting mailbox.
private EmailError SelectMailBox(string folderName)
{
if (!_imap.SelectMailbox(folderName))
{
string path = Path.Combine(Path.GetTempPath(), string.Format("Exchange({0}).log", _settings.IMap.Login));
using (StreamWriter writer = new StreamWriter(path, true))
{
writer.WriteLine("{0}({1}): Папка - {2}, Connected - {3}, LoggedIn - {4}", _settings.IMap.Login, DateTime.Now, folderName, _imap.IsConnected(), _imap.IsLoggedIn());
writer.WriteLine(_imap.LastErrorText);
}
return Mail.EmailError.SelectMailboxFailed;
}
return EmailError.None;
}
Sorry, I have found the mistake. When I write log I call _imap.IsConnected() :)
I will change this code and will write new log later.
Today I got next errors:
testdocs@outlook.com(18.04.2014 11:32:58): Папка - Deleted, Connected - True, LoggedIn - True
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: Deleted
selectMailboxInner:
mailboxPath: Deleted
separatorChar: .
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: Deleted
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: Deleted
imapSelectResponse: aaxy BAD Select Command is not permitted in current state (NotAuthenticated)
Failed.
--SelectMailbox
--ChilkatLog
testdocs2014@yahoo.com(18.04.2014 11:32:49): Папка - Sent, Connected - True, LoggedIn - True
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: Sent
selectMailboxInner:
mailboxPath: Sent
separatorChar: .
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: Sent
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: Sent
imapSelectResponse: aavr BAD [CLIENTBUG] Invalid command or arguments
Failed.
--SelectMailbox
--ChilkatLog
testdocs@mail.ru(18.04.2014 11:32:56): Папка - INBOX, Connected - True, LoggedIn - True
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: INBOX
selectMailboxInner:
mailboxPath: INBOX
separatorChar: .
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: INBOX
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: INBOX
imapSelectResponse: aasz BAD [CLIENTBUG] Unrecognised command
Failed.
--SelectMailbox
--ChilkatLog
test.docs@yandex.ru(18.04.2014 11:21:30): Папка - Черновики, Connected - True, LoggedIn - True
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: Черновики
selectMailboxInner:
mailboxPath: Черновики
separatorChar: .
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: &BCcENQRABD0EPgQyBDgEOgQ4-
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: Черновики
imapSelectResponse: aany NO [CLIENTBUG] SELECT not authenticated. sc=RLX3anIipqMc
Failed.
--SelectMailbox
--ChilkatLog
test.docs@rambler.ru(18.04.2014 11:32:52): Папка - Отправленные, Connected - True, LoggedIn - True
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: Отправленные
selectMailboxInner:
mailboxPath: Отправленные
separatorChar: .
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: &BB4EQgQ,BEAEMAQyBDsENQQ9BD0ESwQ1-
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: Отправленные
imapSelectResponse: aatd BAD invalid command
Failed.
--SelectMailbox
--ChilkatLog
for_site@tut.by(18.04.2014 11:32:50): Папка - Удаленные, Connected - True, LoggedIn - True
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: Удаленные
selectMailboxInner:
mailboxPath: Удаленные
separatorChar: /
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: &BCMENAQwBDsENQQ9BD0ESwQ1-
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: Удаленные
imapSelectResponse: abvu BAD Unknown command g50mb58482005eer
Failed.
--SelectMailbox
--ChilkatLog
Investigate by writing code to see what mailboxes exist. You can do this by using the code from this example: http://www.example-code.com/csharp/imap_listMailboxes.asp
Do the mailboxes that are listed match what your program is trying to select?
I sync imap folders whith client and use code like this (the same as in example):
Mailboxes boxes = _imap.ListMailboxes("", "*");
List<string> names = new List<string>();
for (int i = 0; i < boxes.Count; i++)
names.Add(boxes.GetName(i));
I sure that all mailboxes that were listed are exist. Do you know any imap-server without INBOX? I do not. And if mailboxes do not exist I can not get any mails from them, but I can. Problem is that this folders sometimes can not be selected. Why? I do not know. It is my question. When folder does not exist I get log like this:
ChilkatLog:
SelectMailbox:
DllDate: Mar 6 2014
ChilkatVersion: 9.5.0.16
UnlockPrefix: TOPSYSIMAPMAILQ
Username: KULIGIN:Kuligin
Architecture: Little Endian; 32-bit
Language: .NET 4.0
VerboseLogging: 0
mailbox: [Gmail]
selectMailboxInner:
mailboxPath: [Gmail]
separatorChar: /
Escaping quotes and backslashes in mailbox name...
utf7EncodedMailboxPath: [Gmail]
Failed to find OK line in response.
--selectMailboxInner
Failed to select/examine mailbox
mailbox: [Gmail]
imapSelectResponse: aaae NO [NONEXISTENT] Unknown Mailbox: [Gmail] (now in authenticated state) (Failure)
Failed.
--SelectMailbox
--ChilkatLog
The problem is that some mailboxes may have the NoSelect flag set. The "[Gmail]" mailbox is one that always is non-selectable. See the contents of the Imap.SessionLog (which is kept if the Imap.KeepSessionLog = true:
----IMAP RESPONSE---- * LIST (\HasNoChildren) "/" "\"test\"" * LIST (\HasNoChildren) "/" "INBOX" * LIST (\HasNoChildren) "/" "Trash" * LIST (\Noselect \HasChildren) "/" "[Gmail]" * LIST (\HasNoChildren \All) "/" "[Gmail]/All Mail" * LIST (\HasNoChildren \Drafts) "/" "[Gmail]/Drafts" * LIST (\HasNoChildren \Important) "/" "[Gmail]/Important" * LIST (\HasNoChildren \Sent) "/" "[Gmail]/Sent Mail" * LIST (\HasNoChildren \Junk) "/" "[Gmail]/Spam" * LIST (\HasNoChildren \Flagged) "/" "[Gmail]/Starred" * LIST (\HasNoChildren \Trash) "/" "[Gmail]/Trash" * LIST (\HasNoChildren) "/" "[Gmail]/X&-Y" * LIST (\HasNoChildren) "/" "[Gmail]/&APY-" * LIST (\HasChildren) "/" "newFolder" * LIST (\HasNoChildren) "/" "newFolder/Entw&APw-rfe" aaac OK Success
Also, see the Chilkat.Mailboxes API ( http://www.chilkatsoft.com/refdoc/csMailboxesRef.html ). The Imap.ListMailboxes method returns an Imap.Mailboxes object. There are methods to get the value of any flag, and there are convenience methods for common flags, such as Mailboxes.IsSelectable().
It's good, but... Are you sure that if mailbox has "Noselect" flag it can contains any mails or one mailbox can be selectable and unselectable in one session?
Log examples for previous errors list:
Mailaccount - testdocs@outlook.com Mailbox "Deleted" is selectable:
----IMAP REQUEST----
aaac LIST "" "*"
----IMAP RESPONSE----
* LIST (\HasNoChildren) "/" "Inbox"
* LIST (\HasNoChildren \Trash) "/" "Deleted"
* LIST (\HasNoChildren \Sent) "/" "Sent"
* LIST (\HasNoChildren \Drafts) "/" "Drafts"
* LIST (\HasNoChildren \Junk) "/" "Junk"
* LIST (\HasNoChildren) "/" "&BBAEQARFBDgEMg-"
* LIST (\HasNoChildren) "/" "&BDgENw- &BDQEPgQ6BEEEMA--111"
* LIST (\HasNoChildren) "/" "ffffffffff"
* LIST (\HasNoChildren) "/" "&BCMENAQwBDsENQQ9BD0ESwQ1-"
aaac OK LIST completed
Mail account - testdocs2014@yahoo.com
Mailbox "sent" is selectable:
----IMAP REQUEST----
aaac LIST "" "*"
----IMAP RESPONSE----
* LIST (\HasNoChildren) "/" "000000"
* LIST (\HasNoChildren) "/" "Bulk Mail"
* LIST (\HasNoChildren) "/" "Draft"
* LIST (\HasNoChildren) "/" "Inbox"
* LIST (\HasNoChildren) "/" "Nata 33333 550000000"
* LIST (\HasNoChildren) "/" "Sent"
* LIST (\HasNoChildren) "/" "Trash"
* LIST (\HasNoChildren) "/" "sozd v docs 111"
aaac OK LIST completed
For other mailboxes in previous list I have got the same results. All of them are selectable!
Please show the SessionLog that includes both listing the mailboxes AND a failed select.