What is this mean : you appear to use Sendmail, not Exim, for mail delivery

basketmen

Well-Known Member
Sep 9, 2010
128
1
66
One of my programmer say this, what is this mean?
And if its right, how to use exim, not Sendmail, for mail delivery?

"you appear to use Sendmail, not Exim, for mail delivery. While Exim has a default max mail size of 50M, Sendmail has a default max size of infinity. Please have a server admin check that max_message_size is 50M or lower"