Caching is enabled by default on Mac OS X and you should not change this setting unless experiencing significant issues with Outlook performance.Outlook 2011 or 2016 for Mac: Enable Caching.Please refer to the following recommendations for using caching with your mail client:
If you have a large mailbox (10 GB and over), it may be beneficial to disable caching or cache only for during a certain time period. Without caching no mail will be available without a connection. Caching mail makes copies of your mail messages to your local hard drive, which is useful for accessing messages offline, with slow connections, or if often on the move. In general, you will experience better performance with your email program if you have caching enabled (generally enabled by default).
Exchange Online When to Use Caching with Your Mail Client zip file that contains one of the file types listed above, will also fail to send. There are some attachments that will not send if you try to attach them to an email message.Īde, adp, ani, bas, bat, chm, cmd, com, cpl, crt, dll, exe, hlp, hta, inf, ins, isp, js, jse, lnk, mdb, mde, msc, msi, msp, mst, pcd, pif, reg, scr, sct, shb, shs, vb, vbe, vbs, wri, wsc, wsf, wsh
