All options added, because now everything is funktional for the first time.
Added a surpresswarining and removed some empty lines.
methods Added: 
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public deletefolder(File Savefolder) //clears savefolder from deleted accounts
public noAccounts() // gives error advices
public modAccount(String[]args) 
public getAccount(String[]args) 
public modMail(String[]args) 
public getMail(String[]args) 
public modContact(String[]args) 
public getContact(String[]args) 
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methodes Changed
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~rmAccount(String[]args)
methods added
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public get(String):object
public set(String property, String Value):object
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methods deleted
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public getName():String
public setName(String):void
public getFamilyname():String
public setFamilyname(String):void
public getEmail():String
public setEmail(String):void
public getTel():String
public setTel(String):void
public getMobile():String
public setMobile(String):void
public getStreet():String
public setStreet(String):void
public getCountry():String
public setCountry(String):void
public getHousenumber():int
public setHousenumber(int):void
public getBirthday():Date
public setBirthday(Date):void
Added a suppresswarning
Added methods
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public setInboxServer(String):void
public setPort(int):void
Added methods
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public void setOutboxServer(String):void
public void setPort(int):void
methods added
----------------
public get(String):object
public set(String property, String Value):object
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methods deleted
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public getName():String
public setName(String):void
public getFamilyname():String
public setFamilyname(String):void
public getEmail():String
public setEmail(String):void
public getTel():String
public setTel(String):void
public getMobile():String
public setMobile(String):void
public getStreet():String
public setStreet(String):void
public getCountry():String
public setCountry(String):void
public getHousenumber():int
public setHousenumber(int):void
public getBirthday():Date
public setBirthday(Date):void
Added supresswarning
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modified methodes
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public rmMail(int)

removed methodes
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public getAccName():String

added methodes
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public modMail(int)
public rmContact(int)
public getContact()
public modContact(String[])
public get(String):object
public set(String property, String Value):object