The mail is a lie, I stopped reading after I saw the water part
It's true that they found documents stating that the expedition was underway, It was half-burned when the reichskanzlei was abandoned.
There was always a debate as extensive research showed that the Nazis had a secret weapon which was never revealed but instead was damaged during a Soviet arty strike
Many speculate that the Germans had landed several SS units on the Moon and began creating a Armagaeddon weapon
Some say these SS soldiers who trialed secretly in the Nuremburg Trials, Some of them were murdered while in the French Foreign Legion.
Some even say that the Cuba missle crisis and cold war was a row between US and Russia as they were debating who should rightfully own that powerful weapon
Many thought that the secret weapon was the Nuclear missle but it isn't, Some researchers say that its so powerful it could destroy the whole world while other says it was supposed to be used to sink Britain before the Allied were prepared to carry out D-Day
Other morons then decided to say they had the help of the Aliens after they watch the WW2 episode of Star Gate

If you think about it, Germany couldn't have lost the war even if it meant attacking from both sides, Western Allies only had at most 4million soldiers while Russia about 15 million to 20 million
Germany had more resources at their hands and their tanks and arty were so hard to operate and manufacture because they were extremely complicated
But they lost the war because of the lack of resources and manpower
Their SS units only consisted of 1,550,000 personnel and their Waffen SS amount to as much as 5million
Their Wehrmacht could be as strong as 8,000,000
Not forgetting the 800,000 in Norway and the 1,000,000 soldiers in Finland
They only speculated that the Germans had little soldiers because they retired their war vets, But it was argued they were used in the German Expedition
No way the Germans would have lost just like that, History lied somewhere.. (Think Da Vinci Code)