25 lines
1015 B
Plaintext
25 lines
1015 B
Plaintext
MBOX-Line: From rra at stanford.edu Sun Aug 7 19:05:34 2005
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To: imap-protocol@u.washington.edu
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From: Russ Allbery <rra@stanford.edu>
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Date: Fri Jun 8 12:34:36 2018
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Subject: [Imap-protocol] Protocol Q: IMAP(s) svr (want tcp)-> IMAP client
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In-Reply-To: <42F6B7FD.2000408@tlinx.org> (Linda Walsh's message of "Sun, 07
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Aug 2005 18:40:13 -0700")
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References: <42F6B7FD.2000408@tlinx.org>
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Message-ID: <8764uhgp3l.fsf@windlord.stanford.edu>
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Linda Walsh <imap@tlinx.org> writes:
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> I notice (have for a long time) entries in my firewall' "denied" traffic
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> log that my ISP's imap server is attempting to initiate an inbound TCP
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> connection from server port 993 to a high numbered (>50000) client port.
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This is generally caused by confused firewalls that terminate a connection
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too quickly and then deny the final TCP ack from the server. Check to see
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if these denied packets happen immediately after the end of a legitimate
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connection.
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--
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Russ Allbery (rra@stanford.edu) <http://www.eyrie.org/~eagle/>
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