Hello Donna, I just performed a quick search for you and came up with the following article that I will paste in this post. The URL to the article is located at the end of the text.
Given that Outlook is the primary client of choice for mainstream business users, I am certain it is possible to accept an Outlook invitation from within OS X El Capitan Mail. It’s just a matter of discovering how it is done. Mark Mail (El Capitan): Add events, contacts, and more from messages Add events, contacts, and more from messages in Mail When you receive emails that include invitations, dates and times, addresses, phone numbers, or other types of information, you can use that information in other apps, such as Calendar or Contacts. For example, Mail can detect dates and times in a message and suggest an event to add to your calendar. Add events to Calendar You can add events and invitations you receive in messages to the Calendar app. If you have an Exchange account, you can reply to invitations sent from Calendar, Outlook, or Outlook Web Access. Accept a Mail suggestion: Click Add (you can review the suggested event before adding it to Calendar). To decline the suggestion, click the close button . Add events yourself: Move the pointer over a date or time anywhere in a message until an outline appears around the information. Click the arrow, then click Add to Calendar (shown only if you have already set up an account in Calendar). Add events for an Exchange account: In the banner at the top of the message containing the invitation, click Accept, Decline, or Maybe. If the event is being canceled, click OK. To view the invitation in Calendar, click the Calendar button in the banner. Mail sends your reply to the event organizer and updates your calendar on the Exchange server and in Calendar, when it syncs with the server. Have Mail add events for you: Choose Mail > Preferences, click General, click the “Add invitations to Calendar” pop-up menu, then choose Automatically. Add information to Contacts When you read messages, you can add email addresses and other contact information to the Contacts app. Accept a Mail suggestion: Click Add (you can review the suggested information before adding it to Contacts). To decline the suggestion, click the close button . Add contacts yourself: Move the pointer over a phone number, email address, or street address anywhere in the text. Mail outlines the information; click the arrow, then choose an option from the pop-up menu. Or simply force click the outlined information. Add a contact from a Smart Address: Move the pointer over the Smart Address, click the arrow that appears, then choose Add to Contacts. Add a contact from the message list: Select a message in the list, then choose Message > Add Sender to Contacts. Add passes to Wallet The Wallet app on your iPhone or iPod touch (with iOS 6 or later) lets you store “Wallet passes” such as boarding passes, coupons, movie tickets, and so on. When you receive a Wallet pass in Mail, you can add it to Wallet on your iPhone or iPod touch. The pass is also added to Wallet on Apple Watch, if Mirror iPhone is on in the Apple Watch app. Original Article at: https://support.apple.com/kb/PH22304?viewlocale=en_US&locale=en_US -----Original Message----- From: macvisionaries@googlegroups.com [mailto:macvisionaries@googlegroups.com] On Behalf Of Donna Goodin Sent: Monday, April 25, 2016 5:02 PM To: macvisionaries@googlegroups.com Subject: Re: Is there any way to accept an Outlook Calendar invitation in Mail? Hi, There was an attachment. I looked at it, but it contained no links to except the invitation. Leave it to Microsoft! Cheers, Donna Sent from my iPhone > On Apr 25, 2016, at 4:49 PM, Sabahattin Gucukoglu <listse...@me.com> wrote: > > Any attachments in the message? Maybe if you could merge iCalendar events. > (Nah, silly me, this is Microsoft we’re talking about, yes?) > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor and your owner is Cara > Quinn - you can reach Cara at caraqu...@caraquinn.com > > The archives for this list can be searched at: > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com. > To post to this group, send email to macvisionaries@googlegroups.com. > Visit this group at https://groups.google.com/group/macvisionaries. > For more options, visit https://groups.google.com/d/optout. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at https://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at https://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout.