| Re: Problems sending mail through Kerio - advice on using another SMTP server on the LAN? [message #129253 is a reply to message #129245] |
Thu, 28 April 2016 21:39   |
dave2ic
Messages: 8
Registered: April 2016
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One thing I forgot to mention is that often when we get these '4.4.2. Connection Lost' errors, the recipient actually still receives the email. But because Kerio thinks it hasn't been delivered, the email stays in the queue and can be delivered multiple times.
This is what happened when I did a test with the SMTP Client turned on in the Debug logs, as you advised.
The first email had a 9MB attachment and was delivered with no problems. Then I tried 15MB attachment, and while the message was delivered we got the '4.4.2. Connection Lost' error in the queue. This was the debug log (I've changed the email addresses):
29/Apr/2016 07:21:27][18400] {smtpc} Sending email to SMTP server aspmx.l.google.com, delivering mail from <Sender<_at_>SenderDomain.co.nz>
[29/Apr/2016 07:21:27][18400] {smtpc} Connecting to server aspmx.l.google.com (64.233.189.26:25) using local interface 0.0.0.0 ...
[29/Apr/2016 07:21:27][18400] {smtpc} Connected to SMTP server aspmx.l.google.com
[29/Apr/2016 07:21:28][18400] {smtpc} Received greeting: 220 mx.google.com ESMTP ua9si17474453pab.25 - gsmtp
[29/Apr/2016 07:21:28][18400] {smtpc} Sending EHLO
[29/Apr/2016 07:21:28][18400] {smtpc} Switching connection to TLS
[29/Apr/2016 07:21:29][18400] {smtpc} Sending EHLO
[29/Apr/2016 07:21:29][18400] {smtpc} Sent MAIL command
[29/Apr/2016 07:21:29][18400] {smtpc} Got reply: 250 2.1.0 OK ua9si17474453pab.25 - gsmtp
[29/Apr/2016 07:21:29][18400] {smtpc} Sent RCPT TO: <Recipient<_at_>RecipientDomain.co.nz>
[29/Apr/2016 07:21:30][18400] {smtpc} Got reply: 250 2.1.5 OK ua9si17474453pab.25 - gsmtp
[29/Apr/2016 07:21:30][18400] {smtpc} Sent DATA command
[29/Apr/2016 07:21:30][18400] {smtpc} Got reply: 354 Go ahead ua9si17474453pab.25 - gsmtp
[29/Apr/2016 07:21:30][18400] {smtpc} Sending message body...
[29/Apr/2016 07:23:34][18400] {smtpc} SMTP connection closed while reading SMTP reply
[29/Apr/2016 07:23:34][18400] {smtpc} Connection lost with server aspmx.l.google.com: Connection lost
[29/Apr/2016 07:23:34][18400] {smtpc} Delivery to other mx servers was skipped.
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