Subject: Warning: Delay in message delivery
From: "Mail Delivery Subsystem" <[email-masked]>
To: [email-masked]

There was a temporary problem delivering your message to the following recipients:

<[email-masked]> (connection to 'mx.domain.org' failed: Connection timeout)

Subject: Status of: Re: Battery current sense
From: Message Router Submission Agent <[email-masked]>
To: [email-masked]