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On 4/13/22 3:40 PM, Grant Taylor wrote: |
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> I don't know what name Thunderbird uses in it's HELO / EHLO |
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> command(s). Though it shouldn't matter much which name is used. |
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> |
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> The important thing should be that the SMTP client, be it Thunderbird |
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> or nullmailer or something else, should authenticate to the outbound |
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> relay / MSA. The MSA should then use that authentication as a control |
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> for what is and is not allowed to be relayed. |
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Okay, that's a good tip. From tcpdump on my work machine (nullmailer |
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runs on my home machine, though), I have: |
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EHLO.[10.0 |
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0x0040: 2e32 2e31 355d 0d0a .2.15].. |
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so the argument to EHLO supplied by /thunderbird/ is my ip address. So, |
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the hypothesis is, if I can coerce nullmailer to use that, it should work? |
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