Hello, I just started setting up my website on a Linode recently. And, I am having some trouble with forwarding emails. I am following the guide located at: http://library.linode.com/email/postfix … 0-maverick">http://library.linode.com/email/postfix/dovecot-mysql-ubuntu-10.10-maverick (But I am on Ubuntu 11.04.)

So the basic path of the email should be: sender@example.com (Sender) -> forwarder@example.com (Forwarder) -> recipient@othersite.com (Recipient). But, it keeps returning a 550-No Such User Here

> Jun 16 22:40:03 server postfix/smtp[12729]: 3F9333FC4F: to=<recipient@othersite.com>, orig_to=<forwarder@example.com>, relay=othersite.com[xx.xx.xx.xx]:25, delay=0.8, delays=0.14/0.01/0.56/0.09, dsn=5.0.0, status=bounced (host othersite.com[xx.xx.xx.xx] said: 550-Verification failed for <sender@example.com> 550-No Such User Here" 550 Sender verify failed (in reply to RCPT TO command))

As you can see, it is checking for the account sender@example.com which does not exist on the other server.

My current configuration of main.cf is: Website names have been changed!
> # See /usr/share/postfix/main.cf.dist for a commented, more complete version

Debian specific: Specifying a file name will cause the first

line of that file to be used as the name. The Debian default

is /etc/mailname.

myorigin = /etc/mailname

smtpdbanner = $myhostname ESMTP $mailname (Ubuntu)

biff = no

appending .domain is the MUA's job.

appenddotmydomain = no

Uncomment the next line to generate "delayed mail" warnings

delaywarningtime = 4h

readme_directory = /usr/share/doc/postfix

TLS parameters

smtpdtlscert_file = /etc/postfix/smtpd.cert

smtpdtlskey_file = /etc/postfix/smtpd.key

smtpdusetls = yes

smtpdtlssessioncachedatabase = btree:${datadirectory}/smtpdscache

smtptlssessioncachedatabase = btree:${datadirectory}/smtpscache

See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for

information on enabling SSL in the smtp client.

myhostname = mail.example.com

mydomain = mail.example.com

alias_maps = hash:/etc/aliases

alias_database = hash:/etc/aliases

myorigin = /etc/mailname

mydestination = mail.example.com, localhost, localhost.localdomain

relayhost =

mynetworks = 127.0.0.0/8, 10.8.0.0/24

mailboxsizelimit = 0

recipient_delimiter = +

inet_interfaces = all

html_directory = /usr/share/doc/postfix/html

messagesizelimit = 30720000

virtualaliasdomains =

virtualaliasmaps = proxy:mysql:/etc/postfix/mysql-virtualforwardings.cf, mysql:/etc/postfix/mysql-virtualemail2email.cf

virtualmailboxdomains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf

virtualmailboxmaps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf

virtualmailboxbase = /home/vmail

virtualuidmaps = static:5000

virtualgidmaps = static:5000

smtpdsaslauth_enable = yes

brokensaslauth_clients = yes

smtpdsaslauthenticated_header = yes

smtpdrecipientrestrictions = permitmynetworks, permitsaslauthenticated, rejectunauthdestination, checkrelay_domains

virtualcreatemaildirsize = yes

virtualmaildirextended = yes

proxyreadmaps = $localrecipientmaps $mydestination $virtualaliasmaps $virtualaliasdomains $virtualmailboxmaps $virtualmailboxdomains $relayrecipientmaps $relaydomains $canonicalmaps $sendercanonicalmaps $recipientcanonicalmaps $relocatedmaps $transportmaps $mynetworks $virtualmailboxlimit_maps

virtual_transport = dovecot

dovecotdestinationrecipient_limit = 1

Thank you for your help in advance! I am really stumped at this one. Could it be the other server's fault?