New comment by Amooti73 on mblaze repository https://github.com/leahneukirchen/mblaze/issues/216#issuecomment-962435848 Comment: All was going well as mentioned in my post from last week until I tried sending an email to a large number of recipients and I was confronted by [this error](https://github.com/corecode/dma/issues/18) with dma. So, today I returned to sendmail which does not have the limitation that dma has. I left my .mblaze/profile alone with the "Sendmail: mail" setting and that's OK. I could send an email to about 100 recipients without any error. Thanks!