Aliases mails not receiving individual messages

[patricius]

Hello to all

Since yesterday I´m returning to Fastmail and started the processo of migrating from my other account trough IMAP and all went well ( mails and folders identical etc.).

The only obstacle I´m having is regarding my own domain aliases.

I´m receiving ( I´m testing sending mail from a Gmail account to it ) on my mymail@mydomain.com addresses all mail fine.

But when sending a simple mail (from Gmail ) to 2, 3 or more ( inside the limit of a Enhanced account ) domains aliases created ( alias1@mydomain.com, alias2@mydomain.com, etc. ) , instead of receiving 2/3 or more individual mails, I´m just receiving one single mail to all recipients at once, as if all are the some.

Can someone help to find what I configured wrong?

Best regards,

Patricius.

[misc]

Hi Patricius,

go to Settings → Folders → Advanced (in the top right corner), then you can set the properties for each folder.

There you'll find the option Duplicate deliveries:

To avoid infinite mailing loops, we suppress emails that are duplicates (based on Message-Id) delivered to the same folder. Use this to disable duplicate delivery suppression

Cheers,
Michael

[patricius]

Hi misc

Thanks for your reply.

I made the changing according to what you said.

Unfortunately after testing It didnt´t work.

To test it, from my gmail account I did:

sent a mail subject Test 1 to a single alias address;

sent another mail subject Test 2 to a different single alias address;

sent the last (third mail ) to both aliases addresses in "to" Field".

The two folder we´re defined to "allow duplicates" but:

Received 1st mail ( to first alias ) on respective folder.

Received 2nd mail ( to second alias ) on respective folder.

Received 3rd mail ( for two alias/recipients ) and each one didnt reach his folder, but just a single message arrived in a single folder ( the one of the first recipient on the "To" field.)

Regards.

Patricius

P.S: The test involved two different domain aliases mails only.

[patricius]

Please, any moderator close this topic.

I will return to where I was before.

Regards.

[n5bb]

Patricius: I suggest not closing this thread, since it's instructive. Here is why you saw that behavior, and how to fix it:

• When you sent that message from Gmail (with your two aliases in any combination of the To, Cc, or Bcc fields), Gmail sent separate messages (with identical Message-ID headers) to each alias address at Fastmail. So Fastmail processed these messages separately.
• If you were not using any rules and the alias target (on the Advanced>Aliases or Advanced>Virtual Domains screens) for both aliases was the same folder for both addresses, then as Michael suggested the duplicate suppression property for the alias target folder would control whether you received the second message in that same folder.
• But I think you are using rules to separate the aliases into two folders. So your problem isn't duplicate suppression but instead the way the Sieve rules are written by the basic rules screen. You would have created two filing rules, and only one filing rule can be executed for each message. The normal filing rules look for a match in any delivery header (To, Cc, Resent-to, or X-Delivered-to), so the first rule will probably be satisfied and will file into the specified folder when each message is delivered, since both addresses are in the To (or the To and Cc) headers. This means that the second filing rule will never be reached. If you have disabled duplicate delivery suppression for the folder specified by the first filing rule, then both messages will be delivered to that single folder. I checked and this is indeed what happens.

There are two methods of making this work correctly:

• The best solution is to use the Advanced>Aliases (or Advanced>Virtual Domains) screen to file messages into the proper folders. For example, if alias1 needed to be filed into the Hobby folder of your example@fastmail.fm account, you would set the alias1 target to example+Hobby@fastmail.fm and similarly for other aliases. If you have filing rules, these can override the alias target folder and force a message to be filed into a different folder.
• You could also use custom rules, but this is more complex. In the Advanced>Rules screen, you would make a rule such as the following for each alias you want to file:
  • Advanced
  • N/A
  • address :all :is ["x-delivered-to"] "alias1@domain.xxx"
  • delivery folder desired

Bill

[patricius]

Hi n5bb

Just for the sake of someone benefit I request the moderators to keep this thread/post open.

n5bb thanks for your reply/advice.

Best regards.

Patricius