Re: Avoidance of duplicate mails reg
* an...@ursc.gov.in [191031 09:00]: > > > We have migrated to a new domain yyy.com. We also continue to receive > > > mails on old domain xxx.com. > > > > > > When a sender sends a mail to a...@xxx.com (old domain), mail is > > > received and delivered to user abcd. Abcd when he replies to all (his > > > from email address will be a...@yyy.com [new domain], and hence, mail > > > is also sent to a...@xxx.com [old domain]. So, the sent mail is also > > > received back to the same sender. > > > > > > When the actual recipient receives the mail, he will have a...@xxx.com > > > and a...@yyy.com in the address list. So, when he replies to that > > > mail, 2 mails will be sent to the same user. > > > > > > What's the best way that, the user receives only one mail, when both > > > domains are in To addresses? > > Sorry for the trouble. But, after doing that, when I sent a mail from > outside to both these email addresses abcd@old.example and > abcd@new.example (in a single mail) , 2 emails came instead of one. I > want that, if both these domains are listed in the same mail, only one > mail should be received. The problem here is not Postfix, it is the mail user agent and the (carbon-based) mail user. Users of yyy.com, when replying to mail that was sent to their xxx.com address, must ensure that the reply does not include their old xxx.com address in the From, To, or CC list. For those few who still use a command-line mail client, mutt (and neomutt) can handle this for them, when properly configured. I have no clue how to get other MUAs, such as Thunderbird, or (ugh!) Gmail, to do that automatically, or if they even can. In the absence of a MUA that is not, or cannot be, configured to do it automatically, it is the user's responsibility to adjust the recipient lists appropriately. ...Marvin
Re: Avoidance of duplicate mails reg
an...@ursc.gov.in: Content-Description: Plaintext Message > - Message from Wietse Venema - > ? ? Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT) > ? ? From: Wietse Venema > Reply-To: Postfix users > Subject: Re: Avoidance of duplicate mails reg > ? ? ? To: Postfix users > > > an...@ursc.gov.in: > >> Hi, > >> > >> We have migrated to a new domain yyy.com.? We also continue to receive > >> mails on old domain xxx.com. > >> > >> When a sender sends a mail to a...@xxx.com (old domain), mail is > >> received and delivered to user abcd.? Abcd when he replies to all (his > >> from email address will be a...@yyy.com [new domain], and hence, mail > >> is also sent to a...@xxx.com [old domain].? So, the sent mail is also > >> received back to the same sender. > >> > >> When the actual recipient receives the mail, he will have a...@xxx.com > >> and a...@yyy.com in the address list. So, when he replies to that > >> mail, 2 mails will be sent to the same user. > >> > >> What's the best way that, the user receives only one mail, when both > >> domains are in To addresses? > > > > /etc/postfix/main.cf: > > ? ?virtual_alias_maps = > > ? ? ? ? hash:/etc/postfix/old-to-new ...other existing maps... > > > > /etc/postfix/old-to-new: > > ? ?abcd@old.example? ? ? ? abcd@new.example > > > > # postmap /etc/postfix/old-to-new > > # postfix reload > > > > Instead of hash, you can use any supported type. > > ? ? ? ? Wietse > > - End message from Wietse Venema - > > Sorry for the trouble.? But, after doing that, when I sent a mail from > outside to both these email addresses abcd@old.example and > abcd@new.example (in a single mail) , 2 emails came instead of one.? I > want that, if both these domains are listed in the same mail, only one > mail should be received. You need to prove (logs!) that Postfix received ONE message with multiple recipients. If Postfix receives multiple messages, then Postfix will not combine them into one. Wietse
Re: Avoidance of duplicate mails reg
- Message from Wietse Venema - Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT) From: Wietse Venema Reply-To: Postfix users Subject: Re: Avoidance of duplicate mails reg To: Postfix users an...@ursc.gov.in: Hi, We have migrated to a new domain yyy.com. We also continue to receive mails on old domain xxx.com. When a sender sends a mail to a...@xxx.com (old domain), mail is received and delivered to user abcd. Abcd when he replies to all (his from email address will be a...@yyy.com [new domain], and hence, mail is also sent to a...@xxx.com [old domain]. So, the sent mail is also received back to the same sender. When the actual recipient receives the mail, he will have a...@xxx.com and a...@yyy.com in the address list. So, when he replies to that mail, 2 mails will be sent to the same user. What's the best way that, the user receives only one mail, when both domains are in To addresses? /etc/postfix/main.cf: virtual_alias_maps = hash:/etc/postfix/old-to-new ...other existing maps... /etc/postfix/old-to-new: abcd@old.example abcd@new.example # postmap /etc/postfix/old-to-new # postfix reload Instead of hash, you can use any supported type. Wietse - End message from Wietse Venema - Sorry for the trouble. But, after doing that, when I sent a mail from outside to both these email addresses abcd@old.example and abcd@new.example (in a single mail) , 2 emails came instead of one. I want that, if both these domains are listed in the same mail, only one mail should be received. Hope this clarifies my requirement. Anant S Athavale -- IMPORTANT NOTE: ISRO Satellite Centre (ISAC) was renamed as U R Rao Satellite Centre (URSC). Hence, the existing domain (isac.gov.in) is changed to new domain ursc.gov.in resulting into change of e-mail address from u...@isac.gov.in to u...@ursc.gov.in. Please note this change and update your contact details for new domain (ursc.gov.in). -- Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. --
Re: Avoidance of duplicate mails reg
- Message from Wietse Venema - Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT) From: Wietse Venema Reply-To: Postfix users Subject: Re: Avoidance of duplicate mails reg To: Postfix users an...@ursc.gov.in: Hi, We have migrated to a new domain yyy.com. We also continue to receive mails on old domain xxx.com. When a sender sends a mail to a...@xxx.com (old domain), mail is received and delivered to user abcd. Abcd when he replies to all (his from email address will be a...@yyy.com [new domain], and hence, mail is also sent to a...@xxx.com [old domain]. So, the sent mail is also received back to the same sender. When the actual recipient receives the mail, he will have a...@xxx.com and a...@yyy.com in the address list. So, when he replies to that mail, 2 mails will be sent to the same user. What's the best way that, the user receives only one mail, when both domains are in To addresses? /etc/postfix/main.cf: virtual_alias_maps = hash:/etc/postfix/old-to-new ...other existing maps... /etc/postfix/old-to-new: abcd@old.example abcd@new.example # postmap /etc/postfix/old-to-new # postfix reload Instead of hash, you can use any supported type. Wietse - End message from Wietse Venema - Thank you. Anant S Athavale -- IMPORTANT NOTE: ISRO Satellite Centre (ISAC) was renamed as U R Rao Satellite Centre (URSC). Hence, the existing domain (isac.gov.in) is changed to new domain ursc.gov.in resulting into change of e-mail address from u...@isac.gov.in to u...@ursc.gov.in. Please note this change and update your contact details for new domain (ursc.gov.in). -- Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. --
Re: Avoidance of duplicate mails reg
an...@ursc.gov.in: > Hi, > > We have migrated to a new domain yyy.com. We also continue to receive > mails on old domain xxx.com. > > When a sender sends a mail to a...@xxx.com (old domain), mail is > received and delivered to user abcd. Abcd when he replies to all (his > from email address will be a...@yyy.com [new domain], and hence, mail > is also sent to a...@xxx.com [old domain]. So, the sent mail is also > received back to the same sender. > > When the actual recipient receives the mail, he will have a...@xxx.com > and a...@yyy.com in the address list. So, when he replies to that > mail, 2 mails will be sent to the same user. > > What's the best way that, the user receives only one mail, when both > domains are in To addresses? /etc/postfix/main.cf: virtual_alias_maps = hash:/etc/postfix/old-to-new ...other existing maps... /etc/postfix/old-to-new: abcd@old.exampleabcd@new.example # postmap /etc/postfix/old-to-new # postfix reload Instead of hash, you can use any supported type. Wietse
Avoidance of duplicate mails reg
Hi, We have migrated to a new domain yyy.com. We also continue to receive mails on old domain xxx.com. When a sender sends a mail to a...@xxx.com (old domain), mail is received and delivered to user abcd. Abcd when he replies to all (his from email address will be a...@yyy.com [new domain], and hence, mail is also sent to a...@xxx.com [old domain]. So, the sent mail is also received back to the same sender. When the actual recipient receives the mail, he will have a...@xxx.com and a...@yyy.com in the address list. So, when he replies to that mail, 2 mails will be sent to the same user. What's the best way that, the user receives only one mail, when both domains are in To addresses? -- Anant S Athavale -- IMPORTANT NOTE: ISRO Satellite Centre (ISAC) was renamed as U R Rao Satellite Centre (URSC). Hence, the existing domain (isac.gov.in) is changed to new domain ursc.gov.in resulting into change of e-mail address from u...@isac.gov.in to u...@ursc.gov.in. Please note this change and update your contact details for new domain (ursc.gov.in). -- Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. --
