Sorry for reopening this thread, but I'm unclear on an important point.
When I tried to send mail late today to one of the affected accounts, the mail was returned as undelivered. This is not a disaster (from my point of view). At least those contacts know that the mail was not delivered, and will mostly retry.
Was this the case all day, or did some mail disappear without an 'undelivered' notice being returned? I need to know if I should email all my contacts to ask that any of today's mail be resent. I also need to let my hosting customers know this information.
When I tried to send mail late today to one of the affected accounts, the mail was returned as undelivered. This is not a disaster (from my point of view). At least those contacts know that the mail was not delivered, and will mostly retry.
Was this the case all day, or did some mail disappear without an 'undelivered' notice being returned? I need to know if I should email all my contacts to ask that any of today's mail be resent. I also need to let my hosting customers know this information.