Issues sending mail to the list

[Steven White]

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