Mailings becoming slower and slower to send

[thingmaker]

Hello, I am sending out a newsletter to clients. It is the same list we have used for many years. It normally takes about 13 hours (90 sent every 6 minutes). But the last time I sent it out it took over 24 hours. Today it is taking 48 hours to go out.

Is this my ISP (Cox) blocking it or delaying it somehow? What are other things that would cause it to slow down like this? Thanks. -Derryl

 

[stanbusk]

What version of MaxBulk Mailer are you using? On what operating system and version?

 

[thingmaker]

I am using 8.4.6 on a Mac that is on OS 10.9.5

 

[stanbusk]

When you select the icon of MaxBulk Mailer and the Finder 'Get Info' menu, do you have a check box that is labeled 'Prevent App Nap'?