We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Durham University

Computing and Information Services

Frequently Asked Questions

List of FAQ categories


+How do external partners/collaborators use ZendTo?

External collaborators can exchange files with staff within the University without needing an account. 

Non-Durham users: you cannot log in, but can still send files to Durham users if you know their email address.

Start by clicking the "Drop-off" button. 

Durham users who wish someone outside the University to send them files, can make it a lot easier for them by logging in and clicking "Request a Drop-off". That saves the other person having to prove who they are. The request created will be valid for 7 days.

+How do I access ZendTo?

ZendTo is available at from any web browser, both internal to and external from the University.

Instructions for using ZendTo can be found in the CIS UniDesk Knowledgebase

+How does ZendTo work?

Using ZendTo, Durham University staff can drop-off files for, or pick-up files from, anyone, whether the recipient/sender is inside or outside the University. Recipients are identified by email and receive a message advising them that a file is waiting for them. The email provides information so only they can access it.

External colleagues can also exchange files with University staff provided they know the Durham University email address they wish to send to.

Files dropped off in ZendTo are available for recipients to collect for 14 days before they are automatically deleted from the system.

+What is the largest file I can send or receive?

The maximum upload size is 20GB per drop-off or pick up. If you are transferring multiple files consider zipping them into one file for ease.

+What is ZendTo?

ZendTo is a secure file transfer service which makes it easy to transfer files up to 20GB in size. As there is a 25 MB limit on messages that can be sent and received through your University email account, if you want to send multiple files or a single large file as an attachment ZendTo is the option to choose.

+Who can use Zendto?

Current academic staff, professional support service staff and postdoctoral researchers at the Durham University with a valid CIS user name and password. These staff may send and receive files to anyone, inside or outside the University in line with Information Security and IT usage policies. For more information about these polices see