[CentOS] sendmail Deferred mail - reason unknown

Sean Carolan scarolan at gmail.com
Mon Dec 15 22:33:07 UTC 2008

> But I see nothing you can do at your end if you are sending it other than
> sending a letter to the deferring agent if you have the email, you know who
> it is. If it is a big company like yahoo or hotmail, I would just send a
> letter to the recipient and tell them about the issue so they can expect a
> delay.

It's not a big webmail provider, just a smaller company.  I suspect it
might have to do with the large attachments, or their mail servers
getting overloaded.

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