Bostjan Skufca (at) domenca.com wrote: > could someone please give me plain straightforward answer or point me to URI > where I can find out what is that MSA or Mail Submission Agent all about. ftp://ftp.rfc-editor.org/in-notes/rfc2476.txt > I've been seeking net for quite some time now and I still don't have any clue > what it actually does besides binding to port 587 (I am speaking of sendmail > ofcourse). So far as sendmail is concerned, it's basically just a second port on which to accept connections. However, you can specify different DaemonPortOptions settings for each port. The default setup adds M=E (which disables ETRN) for the MSA. You can disable the MSA using FEATURE(no_default_msa). -- Glynn Clements <glynn.clements@xxxxxxxxxx> - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html