Telstra has attributed a nationwide outage of its BigPond email services this week to an unnamed "software configuration issue".
"The issue commenced at 10.42am [on Tuesday] and was rectified and testing completed by 6pm on that day," a spokesman for the carrier told iTnews.
"Customers may have experienced delays with sending and receiving emails during this time. Webmail was not affected."
No further details from the post-incident report were supplied.
iTnews reported on Tuesday afternoon that Telstra was working its way through a backlog of undelivered emails.
Services had since returned to normal.