<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-15">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Hi,</p>
<p>I'm running some Dovecot servers configured with LVS + Director +
Backend + NFS and version 2.2.36.3 (a7d78f5a2).<br>
</p>
<p>In the last days I see an increased number of these error:</p>
<p>Error:
o_stream_send_istream(/nfs/mail/company.com/info/Maildir/.Sent/tmp/1562771349.M255624P9151.pop01)
failed: Broken pipe</p>
<p>always with action "Disconnected in APPEND", when users try to
upload a message in Sent or Drafts.</p>
<p>Here the logs:<br>
</p>
<p><br>
Director:<br>
Jul 10 14:53:06 imap-login: Info: proxy(<a class="moz-txt-link-abbreviated" href="mailto:info@company.com">info@company.com</a>): started
proxying to 10.0.0.20:143: user=<a class="moz-txt-link-rfc2396E" href="mailto:info@company.com"><info@company.com></a>,
method=PLAIN, rip=84.1.2.3, lip=195.1.2.3, lport=993, TLS,
session=<eA6XKFONwP1f5Sh4><br>
Jul 10 15:09:56 imap-login: Info: proxy(<a class="moz-txt-link-abbreviated" href="mailto:info@company.com">info@company.com</a>):
disconnecting 84.1.2.3 (Disconnected by client: EOF(0s idle,
in=648413, out=6602)): user=<a class="moz-txt-link-rfc2396E" href="mailto:info@company.com"><info@company.com></a>,
method=PLAIN, rip=84.1.2.3, lip=195.1.2.3, lport=993, TLS,
session=<eA6XKFONwP1f5Sh4><br>
<br>
Backend:<br>
Jul 10 14:53:06 pop01 dovecot: imap-login: ID sent:
x-session-id=eA6XKFONwP1f5Sh4, x-originating-ip=84.1.2.3,
x-originating-port=64960, x-connected-ip=195.1.2.3,
x-connected-port=993, x-proxy-ttl=4: user=<>, rip=84.1.2.3,
lip=195.1.2.3, secured, session=<eA6XKFONwP1f5Sh4><br>
Jul 10 14:53:06 pop01 dovecot: imap-login: Login:
user=<a class="moz-txt-link-rfc2396E" href="mailto:info@company.com"><info@company.com></a>, method=PLAIN, rip=84.1.2.3,
lip=195.1.2.3, mpid=9151, secured,
session=<eA6XKFONwP1f5Sh4><br>
Jul 10 14:53:07 pop01 dovecot: imap(<a class="moz-txt-link-abbreviated" href="mailto:info@company.com">info@company.com</a>)
session=<eA6XKFONwP1f5Sh4>: ID sent: name=Thunderbird,
version=60.7.2<br>
Jul 10 15:09:56 pop01 dovecot: imap(<a class="moz-txt-link-abbreviated" href="mailto:info@company.com">info@company.com</a>)
session=<eA6XKFONwP1f5Sh4>: Error:
o_stream_send_istream(/nfs/mail/company.com/info/Maildir/.Sent/tmp/1562771349.M255624P9151.pop01)
failed: Broken pipe<br>
Jul 10 15:09:57 pop01 dovecot: imap(<a class="moz-txt-link-abbreviated" href="mailto:info@company.com">info@company.com</a>)
session=<eA6XKFONwP1f5Sh4>: Disconnected in APPEND (1 msgs,
48 secs, 0/2657336 bytes) in=886661 out=26654 del=1 expu=0 trash=0</p>
<p>I can't understand if is a network problem (Firewall? Load
Balancer? Switch?) or a users LAN problem. Or others.</p>
<p>When this happen user see an error message like "Unable to save
email in Sent folder".<br>
</p>
<p>Any suggestions?</p>
<p>Thanks<br>
</p>
<pre class="moz-signature" cols="72">--
Alessio Cecchi
Postmaster @ <a class="moz-txt-link-freetext" href="http://www.qboxmail.it">http://www.qboxmail.it</a>
<a class="moz-txt-link-freetext" href="https://www.linkedin.com/in/alessice">https://www.linkedin.com/in/alessice</a></pre>
</body>
</html>