I am using the “Automatic” selection under Advanced email settings.
It had been working for several months.
I am getting an email error on the backup confirmation on multiple servers as of early this morning.
the error is: Can’t send email to system.monitoring@XXXXXXXX.com: Could not load file or assembly ‘HtmlAgilityPack, Version=1.4.9.5, Culture=neutral, PublicKeyToken=bd319b19eaf3b43a’ or one of its dependencies. The system cannot find the file specified.
Nothing has been changed on those servers. All are licensed professional edition.
Any suggestions?