3 Replies Latest reply on Jan 9, 2019 8:36 PM by Sanford Whiteman

Out of Office Causing Soft Bounces

Tyler Hubbell Jan 8, 2019 1:36 PM

We sent an outbound email on December 27th and got an unusually high soft bounce rate. After diving into the bounces, we found that most of them were coming from internal employees who qualified for the campaign. Those employees had Out of Office notifications for that day. Has anyone else seen out of office notifications cause soft bounces?

Re: Unusually High Soft Bounce Rate

Sanford Whiteman Jan 8, 2019 1:36 PM (in response to Tyler Hubbell)

An OoO that isn't recognized as such can appear to be a general out-of-band (i.e. post-delivery) bounce.

Can you show the details/category for a couple of these? Also, can you replicate the behavior by setting up your OoO now?
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- Re: Out of Office Causing Soft Bounces
  
  Tyler Hubbell Jan 9, 2019 12:08 PM (in response to Sanford Whiteman)
  
  Hi Sanford,
  
  Thanks for getting back to me. I was not able to replicate this with my own OoO. Here are a few examples from that campaign:
  
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  - Re: Out of Office Causing Soft Bounces
    
    Sanford Whiteman Jan 9, 2019 8:36 PM (in response to Tyler Hubbell)
    
    Well, these are different.
    
    The second one (the [oob]) could have been the Out of Office response mistaken for a post-delivery bounce.
    
    The first one is a real SMTP + DNS error, meaning during that time Marketo couldn't connect to your domain's mailserver(s). Since this happened some time ago and (presumably) isn't reproducible now, it wouldn't be useful to check your current domain health. But if you see this again we can dive deeper.
    
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