Technicians have been "working around the clock" to fix problems with the Manx.net e-mail system.
Manx Telecom says it believes it's made "significant progress" after issues transferring 30,000 user accounts, and millions of mail items, to a new platform.
It's described the issues as "unforeseen difficulties" and has apologised to customers who've been affected.
Chief technology officer Kevin Paige says the problems started during the migration process:
Should Island tax breaks apply to more than wealthiest?
Should the Island do more to encourage all people to move here, and not just the highest earners?
Distillery takes double gold with whiskey
A Ramsey distillery is celebrating after a double-gold victory in the World Whiskies Awards.
Slight rise in inflation during January
Latest figures from the government shows inflation stood at 2.5 per cent at the end of January.
Government figures show sharp fall in egaming income
A new government report shows a steep drop in income from the Island's egaming industry.
Hospitality industry celebrates minimum wage rise U-turn
A new board for the Island's hospitality industry has welcomed a government U-turn on the minimum wage.
New shopfront for Costa?
A coffee shop in the Island's capital could be getting a facelift - if planners approve.
Could WHSmith on Strand Street be sold off?
A shop in Douglas city centre could be sold off after a UK chain announced it was looking for a buyer for 500 of its stores.
Manx film company cleared of charges by US Securities and Exchange Commission
A Manx-based film company says the US Securities and Exchange Commission has cleared it of any wrongdoing after an investigation.
