Emails are not being able be sent via additional email addresses

You're not alone - my customers were seeing the same issue this morning as well. It seems if they (In Outlook - I haven't seen the problem on Thunderbird) go into the advanced settings and for the outgoing server, and check "Outgoing server requires authentication, use same settings as incoming server" - their emails will then work.

Perhaps an unannounced undocumented change in Exim authentication?

 

Same here, we use our server to relay email out; that is we use Google Apps for our incoming but user our server for outgoing. Now w/the latest update it seems as though exim is only allowing email accounts that are on the system to send email. How can we change this?

 

anyone know of a fix for this?

 

Thanks Chris - that takes care of the same problem we have been having today.

 

I noticed this as well, got quite a few support tickets on it today. I found that after the Exim Configuration update, several new options were available in WHM that were not there before:

Under "Exim Configuration Editor" - "ACL Options":

"Require incoming SMTP connection to send HELO before MAIL"

"Require incoming SMTP connection to send a HELO that does not appear to be forged"

Both were defaulted to ENABLED.
While it's too early to tell (I just switched them to disabled a few minutes ago), if I were a betting man, I would lay odds that this will solve the problem outright. Our other servers are on RELEASE, and those options are not present in WHM. And, only clients on this particular server running CURRENT C32017 have experienced this issue today. Hope this helps!

Craig Mayers
Head Honcho
5DollarHosting.com

 

Update:

No HELO errors in the exim_reject log file for 25 minutes now. Also confirmed by phone with a client who had been experiencing problems, they are ok now.

Note: turning on 'Outgoing server requires authentication' worked for her desktop clients, but a networked fax/printer combo machine had no such setting and was not able to send out until the options were disabled as per above.

Craig Mayers
Head Honcho
5DollarHosting.com

 

I had this issue as well, but resolved it by changing the outgoing mail server from "domain.com" to "mail.domain.com".