winmail.dat and PDF - Microsoft Community


i have struggled months.  when send pdf, if receiving party not have outlook, pdf comes in them winmail.dat file.  can not open it.  have searched change this.  made sure email sending html.  set email send text file.  have made sure outlook not have rich text selected.  nothing seems work.  

i can take same file , send through gmail , works fine.  not good.  have exit outlook , log gmail send pdf file.

does have solution this?

moved from: office / outlook / windows 10 / office 2016

hi david,

office 365 admins can use windows powershell change message format prevent winmail.dat attachment being sent external recipients.

more detailed information, please refer article: how specify email message format that's used external recipients prevent winmail.dat attachments

best regards,
shyamal


Office / Outlook / Windows 10 / Office 365 for business



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