Go through a text file. Count the emails sent by each distinct email address and print the email address along with the count of emails

The task is to also print the email address that sent max emails along with the email count and email address that sent min emails with email count.

file1 = open("mbox-short.txt")
daywise_mail_count = dict()
for line in file1:
  words= line.split()
  if len(words) == 0 or words[0] !='From': continue
  word = words[1]
  if word not in daywise_mail_count:
    daywise_mail_count[word]= 1
  else:
    daywise_mail_count[word] += 1
print (daywise_mail_count)
Keymax = max(zip(daywise_mail_count.values(), daywise_mail_count.keys()))
print (keymax)

Tried above code and got following output:
{'stephen.marquard@uct.ac.za': 2, 'louis@media.berkeley.edu': 3, 'zqian@umich.edu': 4, 'rjlowe@iupui.edu': 2, 'cwen@iupui.edu': 5, 'gsilver@umich.edu': 3, 'wagnermr@iupui.edu': 1, 'antranig@caret.cam.ac.uk': 1, 'gopal.ramasammycook@gmail.com': 1, 'david.horwitz@uct.ac.za': 4, 'ray@media.berkeley.edu': 1}
5

The last output should be like
Maximum emails were sent by: 'cwen@iupui.edu': 5
Minimum emails were sent by: 'antranig@caret.cam.ac.uk': 1

If you have your dictionary in daywise_mail_count (as you stated in your question) then you can do:

# your dictionary from the question:
daywise_mail_count = {
    "stephen.marquard@uct.ac.za": 2,
    "louis@media.berkeley.edu": 3,
    "zqian@umich.edu": 4,
    "rjlowe@iupui.edu": 2,
    "cwen@iupui.edu": 5,
    "gsilver@umich.edu": 3,
    "wagnermr@iupui.edu": 1,
    "antranig@caret.cam.ac.uk": 1,
    "gopal.ramasammycook@gmail.com": 1,
    "david.horwitz@uct.ac.za": 4,
    "ray@media.berkeley.edu": 1,
}

mx_email, mx_count = max(daywise_mail_count.items(), key=lambda k: k[1])
mn_email, mn_count = min(daywise_mail_count.items(), key=lambda k: k[1])

print(f"Maximum emails were sent by: {mx_email} {mx_count}")
print(f"Minimum emails were sent by: {mn_email} {mn_count}")

Prints:

Maximum emails were sent by: cwen@iupui.edu 5
Minimum emails were sent by: wagnermr@iupui.edu 1