We are writing to inform you that AT&T - US will conduct a maintenance on their platform at the times specified below.
Type: Scheduled Maintenance
Start Time: 2021-03-31 06:00 UTC
End Time: 2021-03-31 12:00 UTC
Impact MT: Clients may experience delayed/rejected/failed MT traffic towards AT&T
Impact MO: Clients may experience delayed/rejected/failed MO traffic from AT&T
Impact DLR: Clients may experience delayed/rejected/failed DR traffic from AT&T
On behalf of AT&T - US we appreciate your patience and apologize for any inconvenience during this maintenance period.
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please, contact firstname.lastname@example.org
should you require further information or assistance