Is there any kind of delay parameter that can be specified to slow down the processing of a mail merge so that one doesn't exceed most ISP's spam protection limits?
For example, I have a 200-member mailing list, and for short emails, the processing time per message is about 2-3 seconds. I need a 20-30 second delay between sending each message in the merge to avoid bumping into my ISP's limits (50 messages in 5 minutes; 200 messages per hour).
Is there any way to slow things down?