9,641 votesmartin petz commented
we rebranded and merged with several companies over the last 5 years. we still have the old test-tenant we originally set up not realizing that could not be changed (who would even think about that, you can change domains and on any normal sharepoint it is no problem to change the tenant, just not with office365 for completely arbitrary reasons).
this is so far beyond acceptable it is staggering and that ms does not even acknowledge it is a problem shows how awful their understanding of customer requirements is.
We announced at Ignite that we are actively working on bringing dynamic plus aliases to Office 365.
To get around existing usage, the plan is for an opt-in setting. Our ETA is to have this available for all customers by the third quarter of 2020.
I will keep you updated in Uservoice on our progress.martin petz commented
this is a major issue for us - we use dynamic aliases for available job positions in our hr software (e.g. jobs+developer@...)
right now the inability to use these aliases blocks me from switching the company over from google to office365.
please fix asap. this is basic e-mail functionality in this day and age that anyone can build with a run of the mill postfix server in 5 minutes.