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flashmob / go-guerrilla

Mini SMTP server written in golang
MIT License
2.75k stars 360 forks source link

Initial greeting on client connect contains package name #163

Open lord-alfred opened 5 years ago

lord-alfred commented 5 years ago 
lalf@ubuntu:~$ telnet localhost 25
Trying ::1...
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 testsrv.com SMTP Guerrilla(1.5.1-90-gf9c4965) #1 (1) 2019-08-04T13:40:52+03:00

Why explicitly show the client that this package is used? Why not pretend Postfix? Just sooner or later, the smartest system of sending letters will begin to filter domains with such an answer without even transferring any data further.

Maybe it makes sense to change this behavior? For example, make the setting in the configuration file.

flashmob commented 5 years ago

Sounds good. PR to make this configurable would be welcome.

vladtreny commented 4 years ago

Sounds good. PR to make this configurable would be welcome.

Hello, Thank you for your work.

Is it possible (as for now) to hide or configure this line SMTP Guerrilla?