Not a bug system log showing smtp error but mass email showing all sent

Affected Version
2.3.1 RC6

bot

Botimar
system log showing SMTP error so emails not sent, but when there is a problem sending email SMTP error as per the SYSTEM LOG, the mass email should NOT show email has been sent successfully? I have 3 different mass email server setup so if there is any problem like this, mass email should prompt for error first before sending emails. if you include a validation check that could be helpful to fix any problems without keeping checking for the system log.
 
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