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Archived Forum PostQuestion:
We've been using Chilkat to connect to our Exchange 2010 Server for a while and all has been fine, until a few weeks ago when users could no longer connect.
The certificate on the mail domain was about to expire (but was still valid) and I thought it may be somehow to do with that, but now it has been renewed we are getting new errors and I'm not sure what I can do to resolve as nothing has changed that I'm aware of other than the renewed certificate, any suggestions?
ChilkatLog:
Connect_Imap(1469ms):
DllDate: Nov 13 2016
ChilkatVersion: 9.5.0.64
UnlockPrefix: myunlockprefix
Architecture: Little Endian; 32-bit
Language: Visual C++ 8.0 (32-bit)
VerboseLogging: 1
connectInner(1422ms):
connectToImapServer(1407ms):
hostname: mail.mycompany.net
port: 993
socket2Connect(1391ms):
connect2(1375ms):
hostname: mail.canburg.net
port: 993
ssl: 1
connectImplicitSsl(1359ms):
Clearing TLS client certificates.
connectSocket(1187ms):
domainOrIpAddress: mail.mycompany.net
port: 993
connectTimeoutMs: 30000
connect_ipv6_or_ipv4(1172ms):
Multi-threaded domain to IP address resolution
connecting to IPV4 address...
ipAddress: external.ip.address
createSocket(15ms):
Setting SO_SNDBUF size
sendBufSize: 262144
Setting SO_RCVBUF size
recvBufSize: 4194304
--createSocket
connect(47ms):
Waiting for the connect to complete...
myIP: 192.168.1.53
myPort: 63797
socket connect successful.
--connect
--connect_ipv6_or_ipv4
--connectSocket
clientHandshake(140ms):
The client cert chain is NULL.
cacheClientCerts(15ms):
Cached TLS client certificates.
Client cert chain is NULL.
--cacheClientCerts
clientHandshake2(125ms):
readHandshakeMessages(47ms):
WindowsError: An established connection was aborted by the software in your host machine.
WindowsErrorCode: 0x2745
numBytesRequested: 5
Failed to receive data on the TCP socket
sockRecv: Socket fatal error.
Failed to read beginning of SSL/TLS record.
b: 0
dbSize: 0
nReadNBytes: 0
--readHandshakeMessages
--clientHandshake2
--clientHandshake
Client handshake failed. (3)
--connectImplicitSsl
ConnectFailReason: 103
--connect2
--socket2Connect
failReason: 0
--connectToImapServer
connect failed.
--connectInner
Failed.
--Connect_Imap
--ChilkatLog
EDIT: Not sure if this would help figure out the issue, but at the same time we started having problems sending emails using SMTP using the same server, output below:
ChilkatLog:
SendEmail(7297ms):
DllDate: Nov 13 2016
ChilkatVersion: 9.5.0.64
UnlockPrefix: MyUnlockPrefix
Architecture: Little Endian; 32-bit
Language: Visual C++ 8.0 (32-bit)
VerboseLogging: 1
sendEmailInner(7187ms):
getSmtpReversePath(15ms):
fromCkxBounceAddr: fromaddress@mydomain.com
--getSmtpReversePath
renderToMime(1359ms):
createEmailForSending(859ms):
xSigningAlg: sha1
Auto-generating Message-ID
clone2(828ms):
assembleMimeBody(344ms):
contentType: multipart/mixed
isEmailAttachment(62ms):
attachmentReason(46ms):
contentType: multipart/mixed
subject: [U=1074][T=DJ][J=60000][V=1][C=Dr Dempsey][F=1074][S=IM][R=Bathroom][Co=SMB]
from: "Adam Dempsey" <fromaddress@mydomain.com>
No (multipart enclosure)
--attachmentReason
--isEmailAttachment
assembleMimeBody(63ms):
contentType: text/plain
isEmailAttachment(31ms):
attachmentReason(31ms):
contentType: text/plain
No, attachment is not indicated.
--attachmentReason
--isEmailAttachment
getEncodedBody(16ms):
contentType: text/plain
cp: 0
--getEncodedBody
--assembleMimeBody
assembleMimeBody(94ms):
contentType: application/zip
isEmailAttachment(62ms):
attachmentReason(31ms):
contentType: application/zip
disposition: attachment
filename: DJ.tab.zip
name: DJ.tab.zip
Yes (disposition=attachment)
--attachmentReason
--isEmailAttachment
getEncodedBody(16ms):
contentType: application/zip
--getEncodedBody
--assembleMimeBody
--assembleMimeBody
--clone2
--createEmailForSending
assembleMimeBody(484ms):
contentType: multipart/mixed
isEmailAttachment(62ms):
attachmentReason(62ms):
contentType: multipart/mixed
subject: [U=1074][T=DJ][J=60000][V=1][C=Dr Dempsey][F=1074][S=IM][R=Bathroom][Co=SMB]
from: "Adam Dempsey" <fromaddress@mydomain.com>
No (multipart enclosure)
--attachmentReason
--isEmailAttachment
assembleMimeBody(125ms):
contentType: text/plain
isEmailAttachment(79ms):
attachmentReason(47ms):
contentType: text/plain
No, attachment is not indicated.
--attachmentReason
--isEmailAttachment
getEncodedBody(15ms):
contentType: text/plain
cp: 0
--getEncodedBody
--assembleMimeBody
assembleMimeBody(109ms):
contentType: application/zip
isEmailAttachment(63ms):
attachmentReason(47ms):
contentType: application/zip
disposition: attachment
filename: DJ.tab.zip
name: DJ.tab.zip
Yes (disposition=attachment)
--attachmentReason
--isEmailAttachment
getEncodedBody(15ms):
contentType: application/zip
--getEncodedBody
--assembleMimeBody
Email assembled.
--assembleMimeBody
renderToMime: Elapsed time: 1343 millisec
--renderToMime
sendMimeInner(5734ms):
ensureSmtpSession(5719ms):
ensureSmtpConnection(5703ms):
SmtpHost: mail.mydomain.net
SmtpPort: 587
SmtpUsername: providence
SmtpSsl: 0
StartTLS: 1
smtpConnect(5656ms):
smtpHostname: mail.mydomain.net
smtpPort: 587
connectionIsReady(15ms):
Need new SMTP connection
--connectionIsReady
smtpSocketConnect(359ms):
socket2Connect(312ms):
connect2(297ms):
hostname: mail.mydomain.net
port: 587
ssl: 0
connectSocket(266ms):
domainOrIpAddress: mail.mydomain.net
port: 587
connectTimeoutMs: 30000
connect_ipv6_or_ipv4(235ms):
Multi-threaded domain to IP address resolution
connecting to IPV4 address...
ipAddress: 192.168.100.33
createSocket(32ms):
Setting SO_SNDBUF size
sendBufSize: 262144
Setting SO_RCVBUF size
recvBufSize: 4194304
--createSocket
connect(62ms):
Waiting for the connect to complete...
myIP: 192.168.168.28
myPort: 49703
socket connect successful.
--connect
--connect_ipv6_or_ipv4
--connectSocket
--connect2
--socket2Connect
Turning on TCP_NODELAY.
socketOptions(32ms):
SO_SNDBUF: 262144
SO_RCVBUF: 4194304
TCP_NODELAY: 1
SO_KEEPALIVE: 1
--socketOptions
--smtpSocketConnect
smtpGreeting(16ms):
readSmtpResponse(16ms):
SmtpCmdResp: 220 ServerName.Domain.LOCAL Microsoft ESMTP MAIL Service ready at Mon, 19 Dec 2016 08:31:56 +0000
--readSmtpResponse
--smtpGreeting
startTLS(5204ms):
Will be using STARTTLS...
sendCmdToSmtp(16ms):
SmtpCmdSent: EHLO CBM4006800D4J<CRLF>
--sendCmdToSmtp
readSmtpResponse(78ms):
SmtpCmdResp: 250-ServerName.Domain.LOCAL Hello [192.168.168.28]
SmtpCmdResp: 250-SIZE 41943040
SmtpCmdResp: 250-PIPELINING
SmtpCmdResp: 250-DSN
SmtpCmdResp: 250-ENHANCEDSTATUSCODES
SmtpCmdResp: 250-AUTH GSSAPI NTLM
SmtpCmdResp: 250-8BITMIME
SmtpCmdResp: 250-BINARYMIME
SmtpCmdResp: 250 CHUNKING
--readSmtpResponse
sendCmdToSmtp(15ms):
SmtpCmdSent: STARTTLS<CRLF>
--sendCmdToSmtp
readSmtpResponse(5032ms):
SmtpCmdResp: 500 5.3.3 Unrecognized command
--readSmtpResponse
Non-success STARTTLS response.
--startTLS
--smtpConnect
--ensureSmtpConnection
--ensureSmtpSession
--sendMimeInner
--sendEmailInner
Failed.
--SendEmail
--ChilkatLog