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E-Mail: General Settings for All E-Mail Clients


These general settings apply to all e-mail client software for connecting to an ECN e-mail server - NOT ITaP's Office365 or Exchange environments.  Most everybody is on Office365 - see for more information. ph login return all should help see mailHost setting.

(For step-by-step instructions for configuring software like Thunderbird, Apple Mail, Outlook, or other clients, see the sub-categories on the e-mail software page.)



IMAP Account Information

  • Name: (Your name as you'd like it to appear on outgoing messages)
  • Address: (Your e-mail address, e.g.

Incoming Mail Server

  • Host Name: (where "server" is the name of your ECN account's home server)
  • User Name: Your Purdue Career Account username
  • Password: Your Purdue Career Account password
  • Use SSL: On and Server Port: 993 (Required for Thunderbird) or Use TLS: On and Server Port: 143
  • Authentication Method: Password
  • Advanced

    • IMAP Path Prefix: ~/mail
    • "Server supports folders that contain sub-folders and messages": No


Outgoing Mail Server for humans:

  • Activate your account at this page:
  • NOTE: Microsoft MFA will also need to be enabled in order to use the following settings!!
    Then, in your email client:
  • Host Name:
  • Username:
  • Password: Your Purdue Career Account password
  • Server Port: 587
  • Connection Security: TLS

Outgoing Mail server for entity accounts:

  • Hostname: ask ecn for value to use here
  • username: the login of the entity
  • Password: the password ecn provided you for the entity
  • Server port: 587
  • Connection Security: TLS


Attachment limitations

Including attachments in e-mail messages is a popular way to send files from one person to another. Many e-mail servers enforce file size and/or file type limitations to preserve acceptable performance and to prevent the transmission of viruses and other mal-ware.

Here are a few notes regarding file size limitations:

  • ECN's e-mail servers have a 300 megabyte (MB) attachment size limitation for incoming and outgoing messages. (But if you're sending an attachment to someone whose mailbox is outside of ECN, the recipient's server might impose more strict size limitations.)
  • Purdue's central ITaP Exchange server has a 30 MB attachment size limit. Note, though, that Exchange's encapsulation methodology requires some overhead, so file attachments may only be approximately 21 MB or less in size.
  • Many commercial e-mail providers (that is, services with ".com" addresses) impose attachment size limits of 5-10 MB.

Alternatives. If you need to send or receive files which are too large to attach in e-mail (and/or if you need more security than e-mail provides), consider using one of the following services:


Last Modified: Feb 17, 2022 2:26 pm US/Eastern
Created: Apr 5, 2011 8:57 am GMT-4 by admin