I think the delta.chat link in email triggers spam filters. Perhaps it should be changed to delta dot chat? It is possible to change it or remove it in the profile settings but people might not do that until it is too late.
I’d rather have default signature empty:
I considered a blank signature, but I’d like people to know that I used Delta Chat so they might try it. That way there would be the benefits of E2EE etc.
I agree, it has been useful for me, too. I actually got a good percentage of my e-mail contacts to use Delta Chat because they saw my signature and tried it out.