State Department officials deny the renewed effort has any political motivation.
Many users are unable to receive emails or download attachments.
A US federal grand jury indicted 12 Russian intelligence officers in July on charges of hacking the computer networks of Clinton and the Democratic Party.
Tesla Inc. Chief Executive Officer Elon Musk sent an email on Sunday to employees after the automaker achieved a goal of producing 5,000 Model 3 electric cars in the final week of the quarter:
The app is rolling out a new way for iOS users to filter everything but ‘High-priority emails', therefore only getting alerted if emails are marked ‘important.'
James Comey became a controversial figure in the 2016 election, drawing accusations from both Republicans and Democrats that his handling of the probe into Clinton's emails influenced the campaign.
On top of the jail sentence, Karim Baratov was also fined US$250,000.
Alex Turnbull tells The Australian he was rebuked, and later sidelined, for raising questions about the bond deals Goldman Sachs was handling for 1MDB.
The Inland Revenue Board advises all taxpayers to be alert and not to respond to any instruction in the email.
Man pleads guilty to sending obscene content to a woman, says communications commission.