Be sure to be sending plain text emails, not HTML, and watch out for things that could be considered spam. Apache mail servers do receive a LOT of spam, so need to have relatively aggressive spam filters in place.
Upayavira On Thu, Jul 23, 2015, at 07:29 PM, Steven White wrote: > Hi Everyone, > > I'm seeing that some of my emails are not making it to the mailing list > and > I confirmed that I'm subscribed: > > Hi! This is the ezmlm program. I'm managing the > solr-user@lucene.apache.org mailing list. > > I'm working for my owner, who can be reached > at solr-user-ow...@lucene.apache.org. > > Acknowledgment: The address > > swhite4...@gmail.com > > was already on the solr-user mailing list when I received > your request, and remains a subscriber. > > Any idea what the problem may be? > > Thanks > > Steve