Talk:Overlord Volume 11/@comment-77.180.19.206-20161005121641/@comment-213.113.50.12-20161005202836

To answer your question I think as stated by others here he usually double checks his info, another thing being how to me atleast intimate he is to each of the NPC's he uses message with. While the false message that was sent to me is more when random people message along information.

But most of all I believe it is the reason that Ainz is first of all immune to all magic below a certain tier. I think it's around 3-4th tier magic but dont take it to heart. He is therefore immune to most magic that would be used by most spellcasters, atleast from the human race.

Foremost however he has a skill or whatnot dont remember exactly what it is, that automatically destroys divination/information magic that is targeted against him. This is first stated in vol 1 where it instantly destroy's the Slane Theocracy's attempt at spying and later in vol 3 he turns it off so that it will not block Nazarick's looking at his fight against Shalltear, which would also trigger Nazarick counter attack against just blocking.

Since that kind of magic that would change/interfer/intercept message magic would logicly have to be targeted at Ainz who is one part of the two way message would automatically destroy any such attempt by any so far shown magic caster by ease.

My guess is that he block anything below the 8th tier since as again stated in vol 1, a battle between lvl 100's would almost never use any spell under the 8th tier. Together with the fact that the only one thus far shown to be capable of casting 6th tier is his pupil and everyone else using 5th tier and below I think he's pretty safe.