Sporadic Login Failures

I’m getting sporadic login failures, which then resolve themselves and come back again a while later. I am using GoDaddy for email hosting and my password has not changed. I’m able to log in to my account via the GoDaddy website, via my android, and using another thick email client with no problem.

Do you use the GoDaddy calendar too? This happens when you do not have purchased the calendar service and eM Client tries to connect to the CalDAV server anyway. You can simply disable the calendar service in the account settings in eM Client (Tools - Accounts)

Thanks for the response. Unfortunately this doesn’t seem to be the issue in this case as I already have calendar disabled in the em Client. Here’s a snippet of the log file in case this sheds some light:

* OK [CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE
A0 OK CAPABILITY completed
A1 ID (“name” “eM Client” “version” “5.0.17944.0” “GUID” “1”)
* ID (“name” “Courier-IMAP” “remote-host” “:66.65.46.85” “version” “3.1.0.11”)
A1 OK ID completed
A2 LOGIN “email-redacted” “—PasswordRedacted----”
A2 OK LOGIN Full IMAP support is enabled
A3 SELECT “Email_Templates”
* FLAGS (\Draft \Answered \Flagged \Deleted \Seen \Recent)
* OK [PERMANENTFLAGS (\Draft \Answered \Flagged \Deleted \Seen)] Limited
* 0 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1367269323] Ok
* OK [UIDNEXT 1] Predicted next UID
A3 OK [READ-WRITE] SELECT completed.
[IMAP] Cache reset, zero messages. Account: email-redacted Folder: /ACCOUNT:3/Email_Templates
A1449 LIST “” “Email_Templates/%”
A1449 OK Success
* OK [CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE
A0 OK CAPABILITY completed
A1 ID (“name” “eM Client” “version” “5.0.17944.0” “GUID” “1”)
* ID (“name” “Courier-IMAP” “remote-host” “:66.65.46.85” “version” “3.1.0.11”)
A1 OK ID completed
A2 LOGIN “email-redacted” “—PasswordRedacted----”
A2 OK LOGIN Full IMAP support is enabled
A3 SELECT “InteractiveBrokers”
* FLAGS (\Draft \Answered \Flagged \Deleted \Seen \Recent)
* OK [PERMANENTFLAGS (\Draft \Answered \Flagged \Deleted \Seen)] Limited
* 70 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1363970888] Ok
* OK [UIDNEXT 71] Predicted next UID
A3 OK [READ-WRITE] SELECT completed.
A4 UID FETCH 1:70 (FLAGS)
* 1 FETCH (UID 1 FLAGS (\Seen \Recent))
* 2 FETCH (UID 2 FLAGS (\Seen \Recent))
* 3 FETCH (UID 3 FLAGS (\Seen \Recent))
* 4 FETCH (UID 4 FLAGS (\Seen \Recent))
* 5 FETCH (UID 5 FLAGS (\Seen \Recent))
* 6 FETCH (UID 6 FLAGS (\Seen \Recent))
* 7 FETCH (UID 7 FLAGS (\Seen \Recent))
* 8 FETCH (UID 8 FLAGS (\Seen \Recent))
* 9 FETCH (UID 9 FLAGS (\Seen \Recent))
* 10 FETCH (UID 10 FLAGS (\Seen \Recent))
* 11 FETCH (UID 11 FLAGS (\Seen \Recent))
* 12 FETCH (UID 12 FLAGS (\Seen \Recent))
* 13 FETCH (UID 13 FLAGS (\Seen \Recent))
* 14 FETCH (UID 14 FLAGS (\Seen \Recent))
* 15 FETCH (UID 15 FLAGS (\Seen \Recent))
* 16 FETCH (UID 16 FLAGS (\Seen \Recent))
* 17 FETCH (UID 17 FLAGS (\Seen \Recent))
* 18 FETCH (UID 18 FLAGS (\Seen \Recent))
* 19 FETCH (UID 19 FLAGS (\Seen \Recent))
* 20 FETCH (UID 20 FLAGS (\Seen \Recent))
* 21 FETCH (UID 21 FLAGS (\Seen \Recent))
* 22 FETCH (UID 22 FLAGS (\Seen \Recent))
* 23 FETCH (UID 23 FLAGS (\Seen \Recent))
* 24 FETCH (UID 24 FLAGS (\Seen \Answered \Recent))
* 25 FETCH (UID 25 FLAGS (\Seen \Recent))
* 26 FETCH (UID 26 FLAGS (\Seen \Recent))
* 27 FETCH (UID 27 FLAGS (\Seen \Recent))
* 28 FETCH (UID 28 FLAGS (\Seen \Recent))
* 29 FETCH (UID 29 FLAGS (\Seen \Answered \Recent))
* 30 FETCH (UID 30 FLAGS (\Seen \Answered \Recent))
* 31 FETCH (UID 31 FLAGS (\Seen \Recent))
* 32 FETCH (UID 32 FLAGS (\Seen \Recent))
* 33 FETCH (UID 33 FLAGS (\Seen \Recent))
* 34 FETCH (UID 34 FLAGS (\Seen \Answered \Recent))
* 35 FETCH (UID 35 FLAGS (\Recent))
* 36 FETCH (UID 36 FLAGS (\Seen \Answered \Recent))
* 37 FETCH (UID 37 FLAGS (\Seen \Answered \Recent))
* 38 FETCH (UID 38 FLAGS (\Seen \Answered \Recent))
* 39 FETCH (UID 39 FLAGS (\Seen \Recent))
* 40 FETCH (UID 40 FLAGS (\Seen \Recent))
* 41 FETCH (UID 41 FLAGS (\Seen \Answered \Recent))
* 42 FETCH (UID 42 FLAGS (\Seen \Recent))
* 43 FETCH (UID 43 FLAGS (\Seen \Recent))
* 44 FETCH (UID 44 FLAGS (\Seen \Answered \Recent))
* 45 FETCH (UID 45 FLAGS (\Seen \Recent))
* 46 FETCH (UID 46 FLAGS (\Seen \Recent))
* 47 FETCH (UID 47 FLAGS (\Seen \Recent))
* 48 FETCH (UID 48 FLAGS (\Seen \Recent))
* 49 FETCH (UID 49 FLAGS (\Seen \Recent))
* 50 FETCH (UID 50 FLAGS (\Seen \Recent))
* 51 FETCH (UID 51 FLAGS (\Seen \Recent))
* 52 FETCH (UID 52 FLAGS (\Recent))
* 53 FETCH (UID 53 FLAGS (\Recent))
* 54 FETCH (UID 54 FLAGS (\Recent))
* 55 FETCH (UID 55 FLAGS (\Seen \Recent))
* 56 FETCH (UID 56 FLAGS (\Recent))
* 57 FETCH (UID 57 FLAGS (\Recent))
* 58 FETCH (UID 58 FLAGS (\Recent))
* 59 FETCH (UID 59 FLAGS (\Seen \Recent))
* 60 FETCH (UID 60 FLAGS (\Seen \Recent))
* 61 FETCH (UID 61 FLAGS (\Recent))
* 62 FETCH (UID 62 FLAGS (\Seen \Recent))
* 63 FETCH (UID 63 FLAGS (\Seen \Recent))
* 64 FETCH (UID 64 FLAGS (\Seen \Recent))
* 65 FETCH (UID 65 FLAGS (\Seen \Recent))
* 66 FETCH (UID 66 FLAGS (\Seen \Recent))
* 67 FETCH (UID 67 FLAGS (\Seen \Recent))
* 68 FETCH (UID 68 FLAGS (\Seen \Recent))
* 69 FETCH (UID 69 FLAGS (\Seen \Recent))
* 70 FETCH (UID 70 FLAGS (\Seen \Recent))
A4 OK FETCH completed.
[IMAP] Removing 0 items after synchronization. Account: email-redacted Folder: /ACCOUNT:3/InteractiveBrokers
A1450 LIST “” “InteractiveBrokers/%”
A1450 OK Success
* OK [CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE
A0 OK CAPABILITY completed
A1 ID (“name” “eM Client” “version” “5.0.17944.0” “GUID” “1”)
* ID (“name” “Courier-IMAP” “remote-host” “:66.65.46.85” “version” “3.1.0.11”)
A1 OK ID completed
A2 LOGIN “email-redacted” “—PasswordRedacted----”
A2 NO Login failed.
* OK [CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE
A0 OK CAPABILITY completed
A1 ID (“name” “eM Client” “version” “5.0.17944.0” “GUID” “1”)
* ID (“name” “Courier-IMAP” “remote-host” “:66.65.46.85” “version” “3.1.0.11”)
A1 OK ID completed
A2 LOGIN “email-redacted” “—PasswordRedacted----”
A2 NO Login failed.
* OK [CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE
A0 OK CAPABILITY completed
A1 ID (“name” “eM Client” “version” “5.0.17944.0” “GUID” “1”)
* ID (“name” “Courier-IMAP” “remote-host” “:66.65.46.85” “version” “3.1.0.11”)
A1 OK ID completed
A2 LOGIN “email-redacted” “—PasswordRedacted----”
A2 NO Login failed.
* OK [CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT STARTTLS ID CHILDREN NAMESPACE IDLE
A0 OK CAPABILITY completed
A1 ID (“name” “eM Client” “version” “5.0.17944.0” “GUID” “1”)
* ID (“name” “Courier-IMAP” “remote-host” “:66.65.46.85” “version” “3.1.0.11”)
A1 OK ID completed
A2 LOGIN “email-redacted” “—PasswordRedacted----”
A2 OK LOGIN Full IMAP support is enabled
A3 LIST “” “%”
A4 SELECT “INBOX”

Please try to ask the GoDaddy support and send them the log above. According to the log the login is rejected by their server and there’s no additional reason given. Perhaps they would be able to look into their logs and offer an explanation or at least a more detailed error message.