2 Jun
2020
2 Jun
'20
8:05 a.m.
On 6/1/20 10:29 AM, Jerry Geis wrote:
The problem is the client program trying to talk to the linux server is base64 encoding the entire email address for the AUTH LOGIN, not just the "username". so my user name needs to include the "@" symbol.
That's a common requirement for servers that implement multi-domain hosting. In Courier MTA, you can host virtual users in a "userdb" file or SQL DB (or LDAP):
https://www.courier-mta.org/FAQ.html#virtual
Postfix supports similar setup:
https://www.howtoforge.com/virtual-users-and-domains-with-postfix-courier-my...
Whether those are options may depend on how invested you are in sendmail. If you're not a sendmail expert, you're probably better off using a different mail server.