AW: [suse-security] "Submission" port on sendmail
Excerpt from: SENDMAIL RELEASE NOTES $Id: RELEASE_NOTES,v 8.561.2.5.2.80 2000/07/19 20:40:57 gshapiro Exp $ sendmail implements RFC 2476 (Message Submission), e.g., it can now listen on several different ports. Use: O DaemonPortOptions=Name=MSA, Port=587, M=E to run a Message Submission Agent (MSA); this is turned on by default in m4-generated .cf files; it can be turned off with FEATURE(`no_default_msa'). -----Ursprüngliche Nachricht----- Von: Roman Drahtmueller [mailto:draht@suse.de] Gesendet am: Dienstag, 21. November 2000 15:33 An: RoMaN SoFt / LLFB!! Cc: suse-security@suse.com Betreff: Re: [suse-security] "Submission" port on sendmail
emilio:~ # grep submission /etc/services submission 587/tcp # Submission submission 587/udp # Submission
It permits users send or receive mail. Admin tasks are made through ssh and some logs are sent via syslog.
Why is sendmail opening "submission" port??? What is it intended for? Is it insecure??? Could I close it? How?
participants (1)
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Stiefenhofer, Marek ECOFIS