BCC address or character limit?

BCC address or character limit?

Has anyone else encountered a BCC address or character limit?

I'm trying to BCC 144 addresses (3424 characters) at the same time, and while the Sendmail task completes successfully, nothing is received on the other end.

I was able to BCC all 144 addresses using Gmail and received back a few "over quotas" and OOOs, but nothing else egregious.

Just wonder if anyone else has encountered what looks like a limit.

Thanks!