Q - What tips do you have for being published in Guideposts?
A - Guideposts seems to be a favoroable target market for a lot of Christian writers. It may be partly because this magazine has such a large subscription base--3 million--or because they pay well--$100-500. To hit this market, you need to get and carefully study their writers' guidelines. They get so many submissions every month, it's easy for them to discard those that don't follow the guidelines.
They accept only mailed submissions--complete manuscripts with cover letters--and do not consider e-mailed submissions or query letters. According to the editor, the most open section of the magazine is a regular monthly column called Divine Touch--which deals with stories that show tangible evidence of God's help. Unlike the rest of the magazine (which needs to be written in first person), this column calls for third person only. Length for Divine Touch is 400 words and it pays $100.
If you are not familiar with the magazine, read several issues before submitting. Also keep in might that this is not a strictly Christian publication, but has a much broader outreach/audience. Stories for the rest of the magazine tend to be overly dramatic. They tend to get an overabundance of stories about death or healing, so your chances with those kinds of stories are pretty slim.