I've got three returns in this status ("sent to the IRS") - one is coming up on 48 hours. I saw the alert about efile error ("X0000-005 This return was not e-filed due to a timing issue"), but this doesn't seem to apply to me. The IRS MeF Operational Status page says "operational" and another preparer I'm talking with that uses ProSeries says their returns are being acknowledged. My EFIN & PTIN check of returns filed is consistent with what I've submitted so I don't think the IRS is blocking my filing. IF the IRS is having an issue and holding returns, sure would be nice for them to state this on the MeF Status Page and for ProSeries to send out an Alert about delayed Acks.