25

adot@pwndot:~/htb/outdated$ smtp-user-enum -M RCPT -U users.txt -D outdated.htb -t 10.10.11.175
Starting smtp-user-enum v1.2 ( http://pentestmonkey.net/tools/smtp-user-enum )

 ----------------------------------------------------------
|                   Scan Information                       |
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Mode ..................... RCPT
Worker Processes ......... 5
Usernames file ........... users.txt
Target count ............. 1
Username count ........... 3
Target TCP port .......... 25
Query timeout ............ 5 secs
Target domain ............ outdated.htb

######## Scan started at Thu Feb 27 06:15:04 2025 #########
10.10.11.175: [e-mail] exists
######## Scan completed at Thu Feb 27 06:15:04 2025 #########
1 results.

3 queries in 1 seconds (3.0 queries / sec)