Below you can see the different default port numbers for the mail services, please use them in your email client, iphone, droidx, ipad or in any device you wish to configure to send and receive emails.
POP3 - port 110
IMAP - port 143
Secure POP3 (SSL-POP) - port 995
IMAP4 over SSL (IMAPS) - port 993
Secure SMTP (SSMTP) - port 465 (SSL/TLS)
Secure SMTP (SSMTP) - port 25, 26 or 587 (STARTTLS)