Archaic salutation
Hyperbolic language in email
Poor grammar or misspellings
Excessive use of exclamation marks
Promises of swift review or immediate conference abstract acceptance
Journal aim and scope and conference topic is not germane to your area of research
The publisher or conference organizer is unfamiliar
Journal or conference title is similar to an established journal or conference
The publisher icon/logo is similar to an established journal
No credentials for the editor, editorial staff, and/or editorial board members
Indexing status for the journal is noted as PubMed® or Google Scholar or a directory
Vague impact score for the journal or claims that the journal is high impact
Inappropriate images or ads/animations on website
Inconsistent publication or conference history/schedule
No ISSN for the journal
No DOI for the publications
Request for fees upfront or waiver of all fees