Best practices for sending emails (individually or in bulk mailing ) from your software.
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This guide is for writing software applications that need to send mail – if you need to send large amounts of mail as a normal staff member, check out the IST https://uwaterloo.atlassian.net/wiki/x/9QAs6gk article. |
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Sending from Applications
For the purposes of sending general purpose emails to users / students / external contacts, you should use bulkmail.uwaterloo.ca.
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A simple SMTP connection with username / password is all that is required for this service.
Sending from Servers (cron / errors / etc)
This should be mostly for cron/automated server information. bulkmail should be used for application email sending, etc.
Postfix
Postfix for @uwaterloo.ca relay
/etc/postfix/main.cf
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# INTERNET OR INTRANET relayhost = [sas-relay.private.uwaterloo.ca] |
If you will be relaying to ONLY @uwaterloo.ca e-mail addresses, then you can leave it at that. If you wish to relay to external users as well, you will need to use authentication
Postfix for relaying to non @uwaterloo.ca as well
You will
/etc/postfix/main.cf
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postmap relay_passwd |
DragonFly Mail (dma)
DMA for @uwaterloo.ca relay
/etc/dma/dma.conf
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SMARTHOST mxer.uwaterloo.ca |
DMA for relaying to non @uwaterloo.ca as well (needs to be validated)
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SMARTHOST mxer.uwaterloo.ca AUTHPATH /etc/dma/auth.conf |
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service-account|mxer.uwaterloo.ca:password |
Exim
Needs to be filled in