Date: Tue, 13 Feb 2001 11:13:49 -0500 (EST) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Ragnar Beer <rbeer@uni-goettingen.de> Cc: freebsd-security@FreeBSD.ORG Subject: port 587 - submission Message-ID: <200102131613.LAA30846@khavrinen.lcs.mit.edu> In-Reply-To: <p04330107b6af0b27a34f@[134.76.136.114]> References: <p04330107b6af0b27a34f@[134.76.136.114]>
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<<On Tue, 13 Feb 2001 17:08:24 +0100, Ragnar Beer <rbeer@uni-goettingen.de> said: > Howdy! Hi. Please, in the future, remember to press `return' at the end of each (72-character-or-less) line of text in your e-mail. I have reformatted your original text for clarity. > In the process of closing all the open ports that I really don't > need I found a port 587 listed as service 'submission' by nmap. Does > anyone know what kind of service that is? Yes, it is the mail submission agent which is implemented by sendmail. Its purpose is to allow network mail client programs to submit their mail and receive the appropriate processing (e.g., inserting Message-ID and Date headers) which is not permitted in SMTP. -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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