We have a website for the NCTech4Good Conference -- http://nctech4good.org. People register on the site to register for conferences, become sponsors, and submit session proposals. We want to be a able to send an occasional email to everyone on the website, currently about 270 users, with conference updates.
We originally used mass_contact module and that worked but I think it sends one message using BCC and understand that is what spammers do and is considered a bad practice, so we are now trying to use views_send with mimemail. We are using Drupal 6.26 and Conference Organizing Distribution (COD) modules.
views_send gives an internal server error, "Premature end of script headers: index.php, referer: http://nctech4good.org/send-mail"
At admin/settings/views_send, I have cron throttle set to 10 (send 10 messages per cron run) -- cron runs every 5 minutes -- and I checked "Log emails" so I can watch message delivery. The script failed after about 190. So I went back to the list of all the addresses and unchecked them all. Then I manually checked each of the remaining 86 and sent the message to them. This time I did NOT get an internal server error and got a normal completion message saying:
86 processed in about 14829 ms.
What so you suggest? Should I go back to mass_contact? It there a php time limit for scripts that should be extended? Should I try to create groups, perhaps using roles, so I can put about 150 in a group and send to one group at a time?