How many members can you have in an outlook distribution list

Outlook group contact limit usually ranges from If your Outlook is connected to an Exchange server, there's no definite limit to the number of contacts that you can add to a distribution list. The exact limit is based on the total file size of the contacts. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. One question worth asking however is "where exactly did you encounter an issue with the size of your Distribution List in OL'?

Specifically was it in creating the DL or when you were trying to send using it? Reason for question is that different email providers have their own limits on the number of recipients that can be included in a single message which has nothing to do with Outlook. Faculty, staff, and students can create and maintain mailing lists through a centrally managed service called Majordomo.

Lists can also be requested that are based on things like course registration or department affiliation. See the Majordomo information and instructions to get started. Detailed information is available on the Broadcast Email page. Use a Contact Group that is locally created and managed within your email client You can create and maintain a Contact Group within Outlook or similar type of list in other mail clients.

A Contact Group may stop working if you include additional contact information for the members, in which case you can split the group into two Contact Groups. Even though the number of addresses in a Contact Group is unlimited, the mail server may have limits. In a corporate environment, the Microsoft Exchange server may have maximum sizes for Contact Groups.

In home and small business environments, your Internet Service Provider may block emails that contain more than a specified number of addresses. In addition, emails that contain a large number of addresses may be marked or blocked as spam by the recipients' email provider or client software. When you send an email to a Contact Group, Outlook replaces the group name with the email addresses of everyone in the group, so that all the recipients see everyone's email address.

This may take up a lot of space at the top of the email, and also raises privacy concerns. If the group is, for example, a gaming club and all the members know each other, this is fine; but if the group members do not know each other, sending everyone in the group the email address of everyone else in the group could be a serious and even illegal violation of privacy.