Verizon is one of the many Internet Service Providers that require you to authenticate when sending mail. The purpose of SMTP authentication is to reduce email spamming and abusive mailing behaviors.

I've found myself in a situation where I need send/receive mail to/from a remote network (work). I am able to receive mail just fine (using pops, imaps) on my home desktop (debian testing/unstable ...

Ok so I've recently moved from exim to postfix. Everything works just as it did with no problems. I'm trying to setup smtp auth with tls so that I can authenticate to my server and be able to send ...

Microsoft's Exchange team is warning Exchange Online users that many of its customers are being targeted by password spray attacks using its basic authentication. The warning comes as Microsoft begins ...

Microsoft announced that Basic Authentication will be turned off in Exchange Online for Exchange ActiveSync (EAS), POP, IMAP, and Remote PowerShell starting October 13, 2020. This comes after a ...