feature request: regular expressions inside "other_email"-field

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+ for <notmuch@notmuchmail.org>; Sat,  9 Jan 2016 16:36:11 +0100 (CET)\r
+From: Simon Campese <notmuchmail_org@campese.de>\r
+To: notmuch@notmuchmail.org\r
+Subject: feature request: regular expressions inside "other_email"-field\r
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+Date: Sat, 09 Jan 2016 15:36:10 +0000\r
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+\r
+Hello,\r
+\r
+background story (you can skip to the next paragraph for the actual\r
+feature request):\r
+I have a special "spam domain" with a catchall-email (all mails sent to\r
+my domain are forwarded to this email, unless there exists an actual\r
+account), so that I can give out customized email-adresses on the fly\r
+("company_a@mydomain.org' to company A, "website_org@mydomain.org" when\r
+registering on website.org etc.) when I need to fill in an email address\r
+somewhere. This way, I can not only  easily filter all unimportant mail\r
+to a secondary mailbox, but also see exactly where spammers got my email\r
+from. The problem now comes when I need to reply to such an email:\r
+As I of course don't edit my notmuch-config to adjust the other_email\r
+field everytime I invent such an email-address, notmuch doesn't know\r
+that the mail was written to me and thus puts in my standard email\r
+inside the from-header. I thus have to remember to manually change the\r
+from-header and put in the customized email. It would be much more\r
+convenient if I could teach notmuch that all adresses of some special\r
+form (for example written to some domain) are all mine and thus should be\r
+copied from the to-header to the from-header when replying.\r
+\r
+As far as I can see, there are at least two possible solutions:\r
+\r
+1. (quick and dirty):\r
+Write a function which copies the to-header to the from-header if it\r
+matches some regular expression and call it from message-setup-hook.\r
+\r
+2. (more general):\r
+Make the other_email field inside notmuch-config regular-expression\r
+aware (or maybe just support to indicate domain parts). This way, one could write\r
+something like\r
+\r
+other_email=@mydomain.org\r
+\r
+and notmuch would always copy the to-header to the from-header when\r
+replying to mails sent to something@mydomain.org\r
+\r
+I would be very thankful for any solution to this problem as it would save\r
+me a LOT of time every day. I tried to write a function for the\r
+message-setup-hook but due to my very limited knowledge of elisp and\r
+notmuch I didn't get it to work properly.\r
+\r
+\r
+Best,\r
+\r
+Simon\r