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 What Does "Mailbox locked" in the Delivery Logs Mean?

Applies to SmarterMail 8.x - 14.x When reviewing the delivery logs for an installation of...

 Domains with Names Like mail.example.com Disappear

Applies to All Versions of SmarterMail When you add a domain, SmarterMail automatically creates...

 Slow 250 response after Mail From command is issued during an SMTP session.

Applies to All Versions of SmarterMail Sometimes SmarterMail can exhibit some behavior in...

 SmarterMail Timing Out when Uploading or Downloading Large Attachments

Applies to SmarterMail 8.x - 14.x There are times when a timeout message appears when a user...

 Spam and Security Checks for IPv6 Systems

With the introduction of IPv6 in SmarterMail 11.x, there are a few security and spam checks...