efa-project.org

Hello eFa users, I'm using eFa 4.04, and I have a problem whereby the from address is changed on lots of emails, this is happening for many legitimate emails.

for example an email comes

from: Companies House Notifications <companies.house.notifications@notifications.service.gov.uk>

but after passing through efa the from is changed to:

from: 0102019a734fa7ea-8c6522b2-43d6-4f6d-b96c-2a04515500ca-000000@mail.notifications.service.gov.uk

now the email is bounced at the other side because this breaks the dkim since the From domain was changed

bounced (host aspmx.l.google.com[64.233.166.26] said: 550-5.7.26 Unauthenticated email from notifications.service.gov.uk is not 550-5.7.26 accepted due to domain's DMARC policy. Please contact the 550-5.7.26 administrator of notifications.service.gov.uk domain if this was a 550-5.7.26 legitimate mail. To learn about the DMARC initiative, go to 550 5.7.26 https://support.google.com/mail/?p=DmarcRejection ffacd0b85a97d-42ac67a6ea4si7891179f8f.519 - gsmtp (in reply to end of DATA command))


I have looked over all the options on Mailscanner.conf and checked the postfix configs but I cannot find any part where I can see how to correct this behaviour and preserve the original sender, does any one have any clues for me?

On further digging seems to be something to do with msmail using verp envelope senders, these are also incorrectly populated into maillog table as the from_address

trying to work out how to force it to use the original from and not the verp one...