Deliverability
550 5.7.705 vs 5.7.708: tenant ban or low-reputation IP?
Exchange Online 5.7.705 means your tenant sent too much spam or bulk mail and is blocked. 5.7.708 means the sending IP has a low reputation. Both need an admin.
5 min read
Exchange Online 5.7.705 means your tenant sent too much spam or bulk mail and is blocked. 5.7.708 means the sending IP has a low reputation. Both need an admin.
5 min read