Send emails via Telnet (SMTP authentication supported)

Send emails via Telnet (SMTP authentication supported)

1. Connect to the remote server via Telnet

Yes

Telnet mail.test.com 25

Or

Telnet mail.test.com SMTP

2. Say hello to the server

Helo mail.test.com

The server should return
250

If the server SMTP needs to be verified, perform step 3; otherwise, proceed to step 4.
3. Input

AUTH LOGIN

Will prompt you once
334 vxnlcm5hbwu6
And
334 ugfzc3dvcmq6
The following message prompts you to enter the user name and password. The information is base64-encoded.
The entered username and password must also be encoded. Here is an encoding and decoding tool.
After SMTP authentication is passed
235 2.0.0 authentication successful
4. Write a letter
Input

Mail from: <juhui@test.com>

And

Rcpt to: <phpbird@test.com>

Are sent from
If it is normal, 250 should be returned
Input

Data

Start writing

Subject: Test mail
Test email
.

250 2.0.0 OK: queued as 93223136c8e
Exit

Quit

The Postfix is successfully tried.

Popularity: 37%