Here are some tips to troubleshoot problems with attachments:

1. Check that the attachment is the right type: Determine what type of file you are trying to attach, such as .pdf, .docx, .jpg, and so on. Some email services can be picky about what types of attachments they allow.


2. Check the size limit: Most email services have size limits for attachments. Make sure the attachment file size isn't too large.


3. Check that file is not corrupted: Sometimes files can become corrupted when they are being transported from one device to another, like from your computer to email. Try double-checking the file on the original device.


4. Try sending the attachment with a different service: If the attachment is still not going through, try sending with a different service. Some services will let you attach larger file sizes or different types of files.