Email 1.3.0 ssl smtp bug

[iifiigii]

I used offical Email tool to send email by smtp and get error.

Tool responce and my parameter here:

"Results for email_1":{3 items
"success":false
"reason":"An exception occurred while running this function (2). See exception for more details and contact support if this persists (support@shuffler.io)"
"exception":"SMTPServerDisconnected - Connection unexpectedly closed"
}

Variables (click to expand)
username: secux@xxx.com
smtp_host: smtp.exmail.qq.com
smtp_port: 465

recipient: xxxx@xxxx.com

subject: SHuffle Test Email
body: 123

ssl_verify: true

body_type: plain

[iifiigii]

To use ssl, I change the "s = smtplib.SMTP(host=smtp_host, port=smtp_port)" to "s = smtplib.SMTP_SSL(host=smtp_host, port=smtp_port)" and hot load the python-app. That's working.

[frikky]

To use ssl, I change the "s = smtplib.SMTP(host=smtp_host, port=smtp_port)" to "s = smtplib.SMTP_SSL(host=smtp_host, port=smtp_port)" and hot load the python-app. That's working.

So this fix worked for you? Maybe we should try to autodiscover it and failover to SSL if need be? 🤔

[iifiigii]

Yes, that worked for me.
The deep reason maybe is some smtp server expect that client uses an encrypted method to create a connection.(https://stackoverflow.com/questions/59179964/python3-smtp-connection-unexpectedly-closed)

And in Shuffle's scenario, "smtplib.SMTP" cause TIMEOUT(default 300s). This makes autodiscover may not be very easy.

For compatibility, I think you can add a switch parameters and a branch to make smtp connection with " smtplib.SMTP_SSL". But that may compromise the transparency of the tool and make tool hard to understand.

Another way I think is give "smtplib.SMTP(timeout=)" a small timeout parameter, then autodiscover the timeout exception and failover to "smtplib.SMTP_SSL"