E-mail On Zimbra Server

Zmail Account Creation Request

  • URL : https://web.iitm.ac.in/emailonline/
  • The above URL is given for Create a Zimbra mail Account to only faculty and staff. for further access please, Click Here.
  • URL : https://web.zmail.iitm.ac.in
  • The above URL is given for Zimbra Login portal. for further access please,Click Here.

Zmail Password Reset

  • URL : https://ldap.iitm.ac.in
  • The above URL is given for LDAP Password Reset. for further access please,Click Here.

E-mail on Zimbra Server

IITM Permanent employees who have their account on LDAP are eligible to have their Inboxes on Zimbra Mail server with web.zmail.iitm.ac.in as the front end. Here are the different ways one can send and receive mails.

  1. You can configure MS Outlook to send and receive mails using either web.zmail.iitm.ac.in (visible in intranet as well as internet) as your zimbra server. Provide your LDAP username and password as credentials without trailing 1 username.

  2. Clients such as Mail on Apple iPad support zimbra. You can send / receive mails, use calendar and addressbook features of zimbra easily from both intranet as well as Internet. Use web.zmail.iitm.ac.in as your Zimbra server and provide your LDAP username and password as credentials.

  3. A browser is all that you need to use the open web access (web interface) to send and receive mails. Use your LDAP username and password to login to the site.

  4. Configure the incoming IMAP or POP3 server as web.zmail.iitm.ac.in and use LDAP username and password for the login credentials. Configure smtp2.iitm.ac.in or smpt.iitm.ac.in as outgoing smtp server and use your OpenLDAP username and password for the login credentials. Note that both servers uses authentication. Both these servers are visible from Internet. Eg., kmail or evolution on Linux, Thunderbird on Windows / Linux can be configured this way.

  5. Attachment size incoming and outgoing is 10MB.

  6. If none of the above options satisfy you, you can forward your mails on zimbra to your favourite email host. Mail to helpdeskeservices@iitm.ac.in to set the forward.

  7. Total number of accounts is 2200 as on january 2026.

  8. Email Gateway : All incoming and outgoing mails are scanned through the mail gateway SONICWALL. Policy if user sends more than 200 mails per hour the mail id will be blocked as flood sender with no outgoing mails, user will be alerted before getting blocked for other domains. IITM user will receive junk mailbox summary every day.

  9. Storage

User Category Storage Limit
Staff & Office 15 GB
Faculty 60 GB