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I recently installed and configured Postfix, and removed every aspect of Sendmail that I could from my Debian x86 system.

telnet localhost 25

...still returns that I'm using Sendmail. I've uninstalled it, stopped it multiple times, and started/restarted Postfix multiple times as well.

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closed as not a real question by Michael Hampton, kce, mdpc, Scott Pack, Khaled Jan 9 '13 at 7:35

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Exactly what did you do? – Michael Hampton Jan 8 '13 at 21:13
Postfix will answer on port 25 as well as sendmail. – mdpc Jan 8 '13 at 21:49
up vote 2 down vote accepted

Post the output of:

 netstat -anp | grep :25
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tcp 0 0* LISTEN 750/sendmail: MTA: is the output I get. I also seem to not be able to stop the process from running, as /etc/init.d/sendmail stop doesn't give me any error when i continually type it. It's not on my startup list, either. – Joey Miller Jan 8 '13 at 21:31
you still have sendmail running - you can do a 'ps -eaf | grep sendmail' to look at it - kill it, also you can try a 'whereis sendmail' and rename or remove it. – Tom Geee Jan 8 '13 at 21:42
Okay, that worked. Thank you. – Joey Miller Jan 8 '13 at 22:12

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