The League Two club announced the former Arsenal and England centre-back’s shock departure on Thursday.
A statement, including a message from Campbell, read: “Macclesfield Town can confirm that after eight months with the club and successfully leading us to League Two safety last season, we have mutually agreed to part ways with manager Sol Campbell.
“This has been conducted in the most amicable of ways and there has been total transparency between the club and Sol regarding the challenges which face lower league clubs such as Macclesfield Town.
“We have a very competitive squad in place, as demonstrated by our opening games of the new season and this certainly bodes well for the future.
“Sol’s passion, drive and football knowledge will always be remembered at the Moss Rose with fondness and he has issued the following statement in light of the above –
“‘Macclesfield Town provided me with a great beginning in the managerial side of the game, as well as a fantastic learning curve which I am truly grateful for.
“‘I would like to thank all the players and staff for their support during my time at the Moss Rose and also all the loyal fans, whose belief at the end of last season ultimately played a tangible role in our success.’
“We will be making a further announcement on the appointment of a new coach as soon as possible.
“Finally, we would like to thank Sol for his time at the club – not only in helping us retain our League Two status, but also for installing a winning mentality which we now hope to build on.”
We’ll be bringing you the very latest updates, pictures and video on this breaking news story.
For the latest news and breaking news visit: express.co.uk/sport/football
Stay up to date with all the big headlines, pictures, analysis, opinion and video on the stories that matter to you.
Follow us on Twitter @DExpress_Sport – the official Daily Express & Express.co.uk Twitter account – providing real news in real time.
We’re also on Facebook @DailyExpressSport – offering your must-see news, features, videos and pictures throughout the day to like, comment and share from the Daily Express, Sunday Express and Express.co.uk.