Forbidden use of threading in marketing emails "Re:". Why?SOLVE
May 14, 2020 9:36 AM
I was wondering why is that not possible to use "re:" at the beginning of a subject in an marketing email? It is not forbidden so far, and could be used to find all the nurturing emails I would send to my contacts in the same thread as most email clients will work this way.
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May 18, 2020 6:17 AM
Hi @thomasgoirand ,
It's purely there as a protection mechanism, firstly for us (as the accounts sending) and secondly for HubSpot (as the system sending).
Broadly, starting an email "Re:" is considered potentially misleading, even if in your circumstance that's not the intention. Inbox providers are wise to such things nowadays anyway, so even if HubSpot did allow it, you're increasingly likely to see poor deliverability as emails get routed to spam . It could even be considered a breach of CAN-SPAM or other similar rules around the world -- and users are significantly more likely to report such messages as spam, again hurting sender reputation.
HubSpot wants to help you maintain your domain sender reputation, so you don't have deliverability issues and also maintain their shared IPs reputation for processing everyone's emails.
There's a really detailed article about Misleading Subject Lines on the Litmus blog. Worth a read.
In summary, even if HubSpot did allow it, it would not be good practice. Even if you're trying to use it to be helpful in this instance.
Hope that helps!
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