Hacked-off Demon punters are fuming after enduring yet more delayed email over the weekend.

One reader, who asked not to be named, told The Register that Demon's service ground to a halt over 48 hours last week creating a backlog of emails.

According to Demon, last week's downtime was "a result of maintenance carried out on our mail platform [and the] inadvertent misconfiguration of part of the mail server application".

So what about the problems over the weekend?

A statement published yesterday on the ISP's site reads: "The backlog of email and delivery delays were significantly reduced over the weekend. All mail sent before Sunday afternoon should now be available to customers. Some mail sent after this may be slightly delayed.

"The volume of email traffic on the Internet worldwide is continuing to increase beyond expectation and as a result we have brought forward our plans to increase the capacity of the email servers.

"We carried out some preparatory work required for the addition of this extra capacity on Sunday afternoon, as this is a normally quiet time for our systems. This should have only resulted in a short period when email services were unavailable and a resulting backlog for that period."

No one from Demon was available for comment at the time of writing. ®