Alternate contact when mail bounces

We received an invite from a local company recently. At the top of the invite there was a sticker.
Thumb We attempted to send email, but your address bounced. Please contact either me or the tasting room to update. Thanks!

We attempted to send email, but your address bounced. Please contact either me or the tasting room to update. Thanks!

I signed up for their list in person. I’m not 100% sure what happened here, but it’s probably a typo. I appreciate the vendor telling me, though. I do want their email, and now I know they do have an email program I will get the address corrected.

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The first step in talking about soft bounces is to define them. When I talk about soft bounces, I mean mail that has been rejected with a 4xx response during the SMTP transaction. As described by RFC5321, when a recipient MTA responds with a 4xx it is telling the sending MTA “Wait! I can’t take this mail right now. Come back a little later and try again.” The sending MTA will then continue to attempt to deliver the message until either it is delivered or until it hits the max delivery time, usually 3 – 5 days.
In a well behaved and RFC compliant MTA, messages that have reached the maximum time without delivery due to 4xx rejections will be converted to permanent rejections (5xx). With a correct MTA, this means too many emails in a row timing out shoud result in an email address being removed from future mailings.
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