Comcast suffered another nationwide e-mail meltdown Wednesday afternoon when customers discovered their messages were no longer getting through.

Customers pounded Comcast’s support forums looking for answers, but it took awhile for a Comcast spokesperson to finally acknowledge there was a problem.

“We’re aware that Comcast residential Internet customers may not be able to log in to e-mail or may experience delays with e-mail at this time,” said spokesman Jeff Alexander. “Our engineers are working to determine the root cause and are making progress.”

Although no mail appears to have been lost, Comcast customers were not happy with another service outage.

“It seems like at least once a month there is some sort of problem with Comcast’s e-mail servers,” writes Tom Judall, a Stop the Cap! reader and Comcast customer. “This was just the latest and our company uses Comcast Business Class service and was also impacted.”

The outage lasted approximately five hours, with a considerable backlog of messages reaching customers overnight Thursday.

Now some customers are contacting Comcast looking for some credit.

“I think this company owes more than excuses for yet another outage,” Judall said. “How about some credit, which might be an incentive to work harder to fix these issues once and for all.”

Judall is still waiting for a response from a message he e-mailed to Comcast customer service.

In general, Comcast will grant service credit requests for outages lasting several hours, but only when a customer contacts them to request it.