SMTP downtime > 18% Why?
My monitoring services warn me about frequent smtp server downtimes (more than 18%). My website is up during the smtp server failures.
I verified that I cannot send email when this happens and installed a cron job to send email to me and it always works in spite of the reported downtimes and that I cannot send email.
My control panel is SPHERA.
I would appreciate any clue or tip to fix this.
Thanks in advance!
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