Outgoing emails work intermittently -SMTP- NO help

Reported this too many times to mention to Vodacom call centre, and no one seems to help. This is the second post on hello Peter, Consultants that do contact you do not follow up to check if the customers problems are resolved, however they promise to. Consultants also leave you with an email address that you cannot get through to. Struggling for 4 months now. THIS COSTS MONEY!!! VODACOM, TELL THE PUBLIC IF YOU CANNOT PROVIDE THE SERVICE YOU SAY YOU PROVIDE!!!