Gmail, Yahoo and others will soon be officially banned for all government use, in a renewed security ethos designed to permeate through all tiers of government and its agencies and to protect state mechanism from deliberate and unintended abuse.
In its place, it will be compulsory for all federal civil servants to use only the .ng domain based websites and emails addresses.
Previous attempts to ban the use of so-called free email accounts like Yahoomail, Gmail, etc; and enforce the use of .ng based emails for government businesses were hobbled by bureaucracy coupled by the sore-footed and refractory approach of civil servants.
But the federal government, now wary of cyber snooping as well as the flagrant abuse and leakage of important government information through free email accounts may soon outlaw the practice.
A source at the presidency said that “very soon, the government will completely
outlaw e-mail services such as Gmail and Yahoo for official communications”
“The new email policy when released will make it mandatory for government offices to communicate only on.gov.ng . rather than commercial email services like Gmail, Yahoo, Hotmail etc” according to the source.
The development comes close on heels of concerns that some civil servants have inadvertently transmitted sensitive government data and information through their own free email addresses which pose national security challenges.
There are also concerns by intelligence agencies, over use of email services, provided by foreign firms which have their servers located in overseas locations, making it difficult to track if sensitive government data is being snooped upon.

Source: http://www.edesononlinenews.com/2018/09/nigeria-govt-to-ban-gmail-yahoomail-for.html

so in 2018 federal government can't create a personally interagency mailing system on their own server, anyways minister of communication is a lawyer

good. natnal security cud b threatened through these platforms.bt am surprised dat we dont have a platform 4oficial bizz

FG Need Something For Body, Nosensh

Exactly to prevent phishing and other frauds