Strange shortcode [image: Inline image 1]

It appears that Google mail (Gmail) will add a placeholder to the plain text version of your email that looks something like this: [image: Inline image 1]

This will occur for each image inserted “inline” which is the default.This text is actually in the message, Postie is not adding it.The best workaround is to change the “Preferred Text Type” setting to “Html”