Microsoft is set to implement significant security enhancements within its Microsoft 365 suite by blocking various legacy authentication protocols starting mid-July 2025. This initiative is part of the company's Secure Future Initiative (SFI) and Secure by Default strategy, aiming to bolster the...
Microsoft has announced a significant update regarding the deprecation of Basic Authentication (Basic Auth) for Exchange Online's Client Submission (SMTP AUTH). Originally slated for permanent removal in September 2025, the timeline has been extended to begin on March 1, 2026, with complete...
Hi I have been having problems connecting to the internet and that now seems to be ok, when I try to send an email or reply to an email I get this error message:
550 RCPT TO> Relaying not allowed - please use SMTP AUTH
I have spoken to |Tiscali, and I can connect on their site to send and...