YASP (Yet Another Sendmail Problem)

Steven W. Orr steveo at syslang.net
Sat Dec 17 16:35:24 UTC 2005

I just moved from my older dying box to new hardware. After the migration, I
found that I could not send from my own machine. Reception worked but I could
not send. Using the exact same sendmail.mc, it turns out that masquerading 
seems to have somewhat broken.

Hi. I zoomed in further on what my problem is but I have no idea how to
fix it. I placed a copy of my sendmail.mc at


The relevant lines in my sendmail.mc are:


The problem is that masquerading is not happening on a send. If I send to
foo then sendmail expands it to go to foo at saturn.syslang.net instead of
sending to foo at syslang.net

If I send *from* foo, then foo (by default) is sending from
foo at saturn.syslang.net instead of from foo at syslang.net

Does anyone have an idea for how I can fix this?

Time flies like the wind. Fruit flies like a banana. Stranger things have  .0.
happened but none stranger than this. Does your driver's license say Organ ..0
Donor?Black holes are where God divided by zero. Listen to me! We are all- 000
individuals! What if this weren't a hypothetical question?
steveo at syslang.net

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