oiksp_email_headers – filter Hook name: oiksp_email_headers Hook type: filter Plugin ref: oik-squeeze Sourcefile: File ref: oiksp_get_email_headers() – Set the email headers for the wp_mail() call Description: Parameters: Deprecated?: No API Letters: Invokers 1 to 1 of 1 oiksp_get_email_headers() – Set the email headers for the wp_mail() call Implementers 1 to 1 of 1 oiksp_replace_fields() – Perform symbolic substitution of the fields in the body Published: March 31, 2017 | Last updated: March 31, 2017