On 25 April 2018 at 19:25, Gary Smith <gary.sm...@holdstead.com> wrote: > Hi Everyone, > > It's been a long time since something in postfix has stumped me. I am using > virtual alias rewrites to handle 50k incoming email addresses that expand to > 1+n recipients. The recipients are the line managers and lower level people > that handle those accounts. The virtual alias has been working in a general > sense, lately I have been receiving bounces from Comcast and google with > invalid recipients. Normally this would be expected if a manager entered the > wrong email for a line member (these are outside consultants using gmail, > Comcast, etc). The bounce however shows the original email address and not > the alias email address, so it's really hard to track down the email issue > this way. > > So I would like to either rewrite the "to" field or add a header with the > exploded virtual alias mapping. From reading a few external articles the > email should already have the to field set in the header, but that > contradicts what I have read in the postfix virtual readme. I have also > tried using a header_check to and a new header (which I can do for the > original address, but not the virtual alias mapped address). > > When it's bounces via gmail I get the bounce below, which shows the original > TO and not the expected virtual alias mapped. I have several gmail accounts > that are successful however. > > What I would really like to do is add the envelope TO field to the TO header > of the outgoing emails. Is this possible? This would let us at least track > the bounces. Is there a better approach? > > Bounce message: > > mx.google.com rejected your message to the following email addresses: > original_email_address (original_email_addr...@accounts.jellybelly.com) > The email address you entered couldn't be found. Please check the recipient's > email address and try to resend the message. If the problem continues, please > contact your email admin. > mx.google.com gave this error: > The email account that you tried to reach does not exist. Please try > double-checking the recipient's email address for typos or unnecessary > spaces. Learn more at https://support.google.com/mail/?p=NoSuchUser > p25si12399124pgd.395 - gsmtp > > > Diagnostic information for administrators: > Generating server: FFExchange3.jellybelly.net > original_email_addr...@accounts.jellybelly.com...
The log entry placed by postfix/smtp (in e.g. /var/log/mail.log), and which contains the rejection response from the remote server, should contain both the original and remapped mail addresses. Something like: 2018-03-29 16:21:07 yourserver postfix/smtp[2041]: 3127960764: to=<janedoe998...@gmail.com>, orig_to=<j...@yourdomain.tld>, relay=gmail-smtp-in.l.google.com[66.102.1.27]:25, delay=0.73, delays=0.02/0.02/0.47/0.21, dsn=5.7.0, status=bounced (host gmail-smtp-in.l.google.com[66.102.1.27] said: 552-5.7.0 This message... - gsmtp (in reply to end of DATA command))
